Artemis

Camp Half-Blood is a Greek demigod training facility located on the north shore of Long Island. The camp is directed by the god Dionysus, who the campers call "Mr. D," and Chiron, a Centaur who is the activities director. It is also the Greek counterpart of Camp Jupiter, a Roman camp between Oakland, California and Berkley, California.

The camp has magical borders which are enforced by the Golden Fleece, retrieved by the satyr Grover Underwood, the Cyclops Tyson, and demigods Percy Jackson, Clarisse La Rue, and Annabeth Chase. Stolen from Polyphemus' island, it was placed on Thalia's Pine Tree, ensuring that no monster could get into camp. The Fleece stays on the tree, guarded by the dragon Peleus, its magical powers protecting the camp from monsters and invaders.

The camp is described as being the only safe place for half-bloods, although in The Heroes of Olympus series it is revealed that there is a similar camp for Roman demigods – Camp Jupiter, located in San Francisco.

The half-bloods live in cabins (one for each of the twelve Olympians; later, many more cabins were added for minor gods and goddesses after Percy's request in The Last Olympian), and eat at the dining pavilion. There is also an archery field, a sword fighting arena, a climbing wall with lava for training, an amphitheater, stables, an armory, and the Big House.

The camp's cover name is Delphi Strawberry Service, a reference to the name of the Oracle of Delphi.

Notable demigods (AKA the heroes of Olympus that attend CHB) include

Percy Jackson, son of Poseidon Annabeth Chase, daughter of Athena Leo Valdez, son of Hephaestus Piper McLean, daughter of Aphrodite

Other notable demigods include Clarisse La Rue, Daughter of Ares, Silena Beauregard’s best friend Silena Beauregard, Daughter of Aphrodite, unwillingly Kronos’ spy, Charles Beckendorf’s girlfriend (she’s the only one who calls him Charlie, Clarisse La Rue’s best friend, she is deceased Charles Beckendorf, Son of Hephaestus, Silena Beauregard’s boyfriend, referred to as Beckendorf by everybody except Silena, she is deceased Katie Gardner, Daughter of Demeter Castor and Pollux, twin sons of Dionysus, Castor is deceased Thalia Grace, Daughter of Zeus, Hunter of Artemis (Hunter means she is in the Artemis cabin though not actually Artemis’ child) Nico di Angelo, son of Hades, Will Solace’s boyfriend, one of two demigods Dionysus has grown close to, counselor of the Hades cabin Will Solace, son of Apollo, Nico di Angelo’s boyfriend, works in the infirmary, the second of two demigods Dionysus has grown close to, counselor of the Apollo cabin Connor and Travis Stoll, sons of Hermes, Travis is the older brother, Connor is counselor of the Hermes cabin Ethan Nakamura, son of Nemesis, working for Kronos, he is deceased Luke Castellan, son of Hermes, working for Kronos, he is deceased Chris Rodriguez, son of Hermes, Clarisse La Rue’s boyfriend Miranda Gardiner, daughter of Demeter, counselor of the Demeter cabin in Spring, Fall, and Winter Clovis, Son of Hypnos

The council of Cloven Elders is a group in the forests around Camp Half-Blood that is dedicated to finding the god of the wild, Pan. Silenus, an old satyr, current member of the council of Cloven Elders, Dionysus’ old mentor Maron, another old satyr, Silenus’ brother Grover Underwood, a younger satyr who replaced Leneus, another one of Silenus’ brothers; Grover is commonly known as nervous and confused. Grover also had a crush on Artemis because she’s into nature.

Hunters of Artemis’ members include

Artemis/Diana (leader) Zoë Nightshade, daughter of the titan, Atlas (former lieutenant, deceased) Thalia Grace, daughter of Zeus (current lieutenant) Active members

Reyna Ramírez-Arellano, daughter of Roman goddess of war, Bellona (newest member) Hunter Kowalski Iphigenia Former members

Hemithea (now mortal) Josephine (now mortal) Orion (formerly, deceased) Hippolytus (formerly, deceased) Britomartis (became goddess) Syrinx (turned into a minor plant) Polyphonte (before giving birth to Agrius and Oreius, later turned into an owl after giving birth) Kallisto (formerly, turned into a bear) Bianca di Angelo (now Reborn) Phoebe (killed by Orion) Naomi (killed by Orion) Celyn (killed by Orion) Unknown Status

Sipriotes Parthenos

The Hunters of Artemis are maidens (which can be human, god, demigod, or nymph) who have sworn loyalty to the maiden goddess Artemis/Diana to join her in the Hunt and reject love for as long as they live. They gain eternal youth and semi-immortality as long as they don't break their vows, or are slain in battle.

As the protector of maidens, Artemis would punish men who dare to lay eyes on her Hunters. Additionally, because of their oath, many of the Hunters have become so isolated from males that they have come to distrust them, dreading even travelling with them, as seen in The Titan's Curse and The Last Olympian, though there have been a few males that were accepted into the Hunt. However, some hunters like Thalia Grace are completely fine with travelling or interacting with men.

As revealed in The Tyrant's Tomb, the Hunters have their own PO box in Wyoming that can be used to send messages to them through the US Postal Service.

History

Birth and Travel to Olympus

Artemis was conceived by Zeus and the Titaness Leto. After her mother got pregnant, Hera got infuriated for her husband's constant cheating and cursed Leto to wander the earth without finding a place with roots to give birth. After traveling for a long time, the floating island of Delos gave sanctuary to Leto as the nature spirits there welcomed her. All the goddesses begged Hera to allow her daughter Eileithyia, the goddess of childbirth, to come to Leto, who finally gave birth to a daughter named Artemis on the seventh day of the seventh month.

Almost immediately, Artemis grew to the size of a six-year-old girl and helped deliver her twin brother, Apollo, nine days later.​​​​​​ Seeing that it took days and nights to help her mother give birth to Apollo, the young Artemis swore to be a virgin and that she didn't like men after that. However, this event also influenced her to become the protector and nurturer of the young.

Four days later, Artemis asked her aunt Hestia to take her to Mount Olympus so she could meet with her father. After Artemis lovingly embraced Zeus with open arms, he swore on the River Styx to grant his daughter anything as a birthday present. Artemis requested to be an eternal maiden, the goddess of the wilderness, and wanted a band of eighty maiden followers who varied from mortals or nymphs, twenty of whom hunted with the goddess personally. The Elder Cyclopes forged Artemis' Silver Bow and arrows, while Pan provided her with hunting dogs. Her followers consisted of about eighty maiden girls who varied from mortals or nymphs,

First Giant War

During the First Giant War, Artemis was notable for fighting against Otis and Ephialtes, known as the Alodai twins. The giants captured Ares and planned on attacking Olympus by stacking their makeshift mountains on top of each other.

After hearing Ephialtes and Otis intended to seize Hera and Artemis as their wives, Artemis charged down the mountain and struck the Alodai twins with arrows. They tried impaling her with their spears, but she was too fast for either of them. She tricked the giants into killing each other by running between them and dodging at the last moment just as they stabbed at her, causing the twins to kill each other instead.

Kalydonian Boar Hunt

When King Oineus of Kalydon forgot to honor Artemis at harvest time, the enraged goddess summoned a monstrous boar which she unleashed upon the fields of Kalydon, killing many animals and people in the process. Oineus consulted his son Meleager, who suggested launching a great hunt to appease Artemis. All the best hunters in Greece were summoned to participate in the Kalydonian Boar Hunt, but Artemis sabotaged them.

Mopsos, the strongest spear-thrower in Greece, tried killing the monster by launching his spear at it, but Artemis made it bounce harmlessly off the boar. Another hunter named Ankaios charged at it with a double-bladed ax, but died when the boar rammed his tusk straight into Ankaios' crotch. It was Prince Meleager who finally managed to kill the monster with help from the heroine Atalanta, who paralyzed the boar, but it wasn't enough to please Artemis. She made the other hunters envious and a full-scale civil war erupted when fighting broke out over who really deserved credit for killing the Kalydonian Boar.

Punishing Niobe

When Queen Niobe of Thebes insulted Leto by saying her own children were more numerous and better overall, an enraged Artemis shot arrows at Niobe's seven daughters, while her brother Apollo shot arrows at Niobe's seven sons. In an act of mercy, the gods only left alive to the Queen's youngest daughter and turned Niobe into stone.

Punishing Actaeon

One night, a prince named Actaeon hunted with his dogs until he stumbled upon Artemis and her Hunters bathing. At the sight of the naked goddess, he immediately fell in love with Artemis and revealed his presence to her. He declared his desire to marry her, though this incited her rage when Actaeon said "[he] must have [her]". As punishment, Artemis transformed Actaeon into a deer and had him killed by his own hunting dogs when she stirred them from sleep.

Encounter with Sipriotes

Sipriotes was an unfortunate boy who spotted Artemis bathing. Unlike Actaeon, Sipriotes fell to his knees and begged Artemis for mercy. Having gazed upon her naked form, she would have killed Sipriotes, but she decided to give him the option of becoming female to live due to her position as the protector of young children. Left with no other choice, Sipriotes was changed into a girl by Artemis and joined the Hunters.

Seduction of Kallisto

Artemis' lieutenant and best friend was Kallisto, a beautiful nymph who caught her father's attention. Zeus appeared to Kallisto in his daughter's form and tried seduce her, but a confused Kallisto rejected his advances. He decided to reveal his true self and had his way with her, fathering a child in the process.

Many months later, after a long hunt, Artemis and the Hunters decide to go swimming. When Kallisto was reluctant to join them, Artemis discovered the pregnancy and demanded to know who took her maidenhood. When Kallisto told her it was Zeus disguised as Artemis herself, the goddess was unable to do much because of her father's power. Declaring that she would have allowed Kallisto to go peacefully and settle into a new life, a saddened Artemis followed her rules and transformed the sobbing girl into a bear, telling her former best friend to leave or face death. Kallisto eventually gave birth to a human son by the name of Arkas, but was later killed by hunters. Upon death, Zeus, who possibly felt guilty for his actions, honored Kallisto in the stars by making her the constellation Ursa Major.

Death of Orion

Following the incident with Kallisto, Artemis befriended the giant Orion, former royal hunter of the King of Chios. After he had his sight restored by Hephaestus with mechanical eyes, Orion settled on Delos, where Artemis allowed him to join her Hunters as the first ever male due to his impressive hunting abilities and archery. He respected all the Hunters and gave them their space when they were bathing.

However, Apollo drove Orion crazy for being close to his sister, fearing she would break her vows of maidenhood. One day, the giant got carried away with hunting so much that he began killing harmless animals, declaring that "[he] will kill all the animals in the world". This didn't sit well with the Hunters' way of life, nor with the Earth Mother Gaea. His claims stirred the latter from slumber, sending a massive scorpion that killed Orion with its poisonous stinger. Artemis found his body shortly thereafter. Saddened by the death of yet another friend, she made Orion into a constellation with a scorpion to immortalize his story.

Befriending Hippolytus

Hippolytus was a charming, handsome prince and legacy who had no interest in romance whatsoever. His passion for hunting made Artemis accept him into the Hunt, though her followers were rather hesitant at the thought of having an attractive male among their ranks. However, Hippolytus never tried anything romantic with the Hunters. His asexuality and aromanticism greatly enraged the love goddess Aphrodite, who manipulated his father Theseus's emotions when he returned home to visit his family. The two got into an argument about Hippolytus marrying and having children, despite the latter insisting to remain at Artemis' Hunt, which resulted in Theseus drawing a sword and striking Hippolytus dead.

Upon hearing of her friend's death, a devastated Artemis promptly rushed to Hippolytus' tomb and carried his deceased body to her nephew Asclepius, the best physician in all of Greece. She requested that Asclepius revive him from the dead, which he did with the Physician's Cure. However, this had immediate repercussions: Aphrodite complained to Zeus about Hippolytus' revival along with Hades, as it could possibly cause chaos in both the mortal world and the Underworld. Zeus appeased his aunt and brother by personally striking down Asclepius with a thunderbolt, but Apollo was angered and devastated by the death of his favorite son and killed one of the younger Cyclopes who forged Zeus' thunderbolts in retaliation. To prevent a feud, Asclepius was resurrected and made into a god, but Hades forbid him from ever resurrecting the dead again. Fortunately, Artemis protected Hippolytus and had him sent off to Italy, where he lived to an old age as a priest to one of her sacred shrines.

Appearance

As shown in Percy Jackson's Greek Gods, Artemis is tall and possesses a well-built body. She has shoulder-length raven-black hair and striking silver-grey eyes that can easily intimidate when she is angry. Artemis is extremely beautiful and lovelier than all her attendants.

The other novels depict Artemis as a beauty, though there are some inconsistencies with this description of her. In The Titan's Curse, she was portrayed as a girl of the average age of her Hunters - around twelve or thirteen. She had a face of such beauty that it made Percy catch his breath, cold and bright eyes as silvery yellow as the winter, and auburn hair gathered back in a ponytail. In The Blood of Olympus, Artemis was depicted as a young girl of the same age and dark hair pulled back into a ponytail. She wore black leggings and a silver tunic. In The Dark Prophecy, Apollo notes that Artemis never seems to assume a form any older than twenty years old. The differences in Artemis's physical description throughout the novels could be attributed to the fact that as a goddess she has the ability to assume any shape she desired, though it must be noted that she retains her incredible beauty and grace no matter what physical manifestation she adopts. Personality

Artemis is a focused, reserved and reasonable woman, but also extremely stoic and pragmatic. She doesn't frequently lose her temper and speaks calmly with others, even male demigods. She prefers the company of her followers and animals to even that of other gods, passing most of her time hunting in the wilderness. She possesses a deep caring for maidens, especially for the ones whom she presides over.

Unlike her twin brother Apollo, Artemis is less "easy-going" and has a much greater understanding of mortals than most of the other Olympians, much like her half-brother Hermes. She is among the more sympathetic and selfless Olympians, weighting individuals by their actions and choices as opposed to their potential as shown when she defends Percy from the Olympian Council for saving her and putting his life on the line for them all. She doesn't discriminate when selecting girls to join her ranks, allowing mortals, demigods, and nymphs to become Hunters, including her former lieutenant Zoë Nightshade, a daughter of the Titan Atlas.

However, she is known to be quite sneaky and sometimes pranks her brother. In the Hidden Oracle, Apollo mentions that on festival days Artemis tapes "kick me" signs on Apollo's toga.

Though rarely, Artemis acts out in anger whenever her wishes were disobeyed, especially if anyone transgressed against the animals that were sacred to her. Her dark side is mostly shown in Percy Jackson's Greek Gods: she banished her best friend Kallisto from among her Huntresses and transformed her into a large bear for not tell her about Zeus' assault, ruthlessly killed Queen Niobe's seven daughters after she insulted her mother (sparing only the youngest one), and unleashed a huge boar on the fields of Kalydon because King Oineus forgot to honor her at harvest time, which induced a subsequent full-scale civil war after the boar's death. All these actions shows a formidable capacity for carrying grudges, much like her uncle Hades.

Although she is mostly reasonable, Artemis holds a general dislike and distrust towards men, though she has a softer side towards children and hunters. She doesn't marry or have children because she was very affected with helping her mother to give birth to her twin brother for entire days. However, she does acknowledge and respect those who prove themselves to her, including Orion, Hippolytus, and Percy. The ones that Artemis doesn't respect (and neither respect her) suffer horrible consequences. In Percy Jackson's Greek Gods, she transformed Actaeon into a stag after he saw her naked, though many people in that situation would have assumed that Actaeon planned to rape her and she defended herself accordingly. She was far more merciful to an apologetic Sipriotes, though she permanently changed the young man's gender. In The Titan's Curse, it is said she likes to turn boys who see the Hunters' camp into jackalopes. Abilities

As a daughter of Zeus, Artemis is an extremely powerful goddess. Due to her considerable influence and followers, she bears a greater level of worship than most of the Olympians, contributing to her powers greatly. The elder Olympians (the Big Three, Hera, Demeter, and Hestia) are the only gods who surpass her. She is equal to Apollo and rivaled by Athena.

Enhanced Hunting: As the Goddess of Hunting, Artemis is an unrivaled master of hunting and tracking, having the same advanced hunting powers her hunters have, but extremely increased. She can help heroes more directly since wild animals and monsters are in her domain. Archery: As the Goddess of Archery, Artemis is an extremely skilled archer only rivaled by Apollo and Orion. She inherited her skill from her mother. As revealed in Percy Jackson's Greek Gods, her arrows strike her target no matter how far they are though it might be magic. Her aim was so incredibly precise and fast that she was able to split the Manticore's spikes mid-air with her arrows in The Titan's Curse. Knifemanship: Artemis has amazing agility and impeccable expertise at using long hunting knives in close combat. Prowess in Battle: Artemis is shown to be extremely formidable in battle. In Percy Jackson Greek Gods, she defeated the powerful giants Otis and Ephialtes (who previously kidnapped Ares). She was trusted by Zeus to kill any powerful monsters Kronos would try to recruit in The Titan's Curse. She held her own and ultimately prevailed against the stronger Titan General Atlas, even though she was exhausted due to having held up the sky and he had a greater weapon - an amazing feat considering that he overpowered the combined might of Percy and Zoë. However, it should be noted that Atlas initially had the upper hand and was only through a sneak attack. Alongside the other gods, Artemis fought against Typhon for several days in The Last Olympian. Hunting Transfiguration: Artemis can transform ordinary objects and creatures into things associated with hunting. In Percy Jackson's Greek Gods, she transformed Actaeon into a stag and Kallisto into a brown bear. In The Titan's Curse, she transformed a helicopter and the mortals piloting it into a flock of ravens. Strategic Skill: Although not on par with her half-sister Athena, Artemis is very tactical in combat. She effectively utilizes certain advantages that she possesses against enemies, such as running fast between Otis and Ephialtes to change their target and transforming into a number of animals to elude Atlas. Wilderness Manipulation: As the Goddess of the Wilderness, Artemis has divine authority and absolute control over the forests, including its inhabitants and surroundings. Animal Authority: Artemis has divine authority over wild animals, primarily over wolves, hawks, and stags. In Percy Jackson's Greek Gods, she unleashed a huge and fierce boar upon the fields of Kalydonia. Animal Replenishing: She can replenish the animals she kills, thus balancing the fauna. Zoolingualism: She can communicate with wild animals. Atmokinesis: Artemis has absolute control over the elements surrounding her domain, though to a lesser extent than her father. In The Titan's Curse, Percy observed that "the weather seemed to bend to [her] will." Aerokinesis (limited): Artemis can control and manipulate air. She can halt the wind at least in the immediate vicinity of the Hunt, even in a snowy day. Chlorokinesis (limited): Although she isn't quite as powerful in this regard as her aunt Demeter or her half-brother Dionysus, Artemis has control over the plants over any forest and its surroundings. She controls every aspect from its trees to the ground, as shown in The Titan's Curse. Lunakinesis: As the Goddess of the Moon, Artemis has absolute control and divine authority over the Moon. Photokinesis: Artemis has absolute control and divine authority over the moonlight. Moonlight Rays: She can shoot lasers of concentrated moonlight. This is shown in the gods' battle against Typhon. Enhanced Vision: She can see clearly in the dark. Teleportation: She travels through waves of light, which can blind people. Constellations Creation: Artemis can transform people into groups of stars once they have died. Some constellations include Orion in Percy Jackson's Greek Gods and the Huntress in The Titan's Curse. Artemis' Blessing: As the Goddess of Hunting and Maidenhood, Artemis is capable of granting eternal youth, immunity to illness, enhanced hunting skills, and superhuman physical abilities greater than that of a demigod. Should her chosens break their vow, she can strip them of the powers she grants. Immortality Reversal (possibly): She is apparently able to take away a goddess' eternal youth, such as Hemithea, who became a minor goddess before joining the Hunters. However, her former immortality may only be a condition of her vow. Reproduction Manipulation: As the Goddess of Childbirth, Artemis has absolute control and divine authority over reproduction. As shown in Percy Jackson Greek Gods, she helped her mother's delivery of Apollo as soon as she was born. Gender Reassignment: As seen in Percy Jackson Greek Gods, she permanently transformed the young Sipriotes into a maiden after he accidentally witnessed the virgin goddess bathing. Shapeshifting: As a goddess, Artemis has the power of shapeshifting, which allows to turn herself into any animal. This is shown in her duel with Atlas when she fluidly transforms into a tiger, a gazelle, a bear, and a falcon. Vitakinesis: As a goddess, Artemis has the power of healing despite it not being her specialty. In The Titan's Curse, she attempts to heal Zoë Nightshade's poisoned wound, but is stopped by Zoë herself who knows that it's no use. As Diana, Artemis was able to heal her brother's zombie infection. Attributes

Her attributes are a silver bow, arrows, and the crescent moon (or the full moon). Her sacred animals are the deer, stags, bears, guinea fowl, bee, snakes and hunting dogs. Her sacred plants are the flowering almond, hazel, ranunculus, honeysuckle, thistle, the fir tree and the cypress tree (the last symbol represents grief and mourning because Artemis could bring terrible diseases such as leprosy, although she also was associated with healing). Her sacred colors are silver (which represents the moon), white (which represents purity) and green (which represents the forests). Her sacred gems and metals are moonstone, quartz, crystal, silver, turquoise, iron, aluminum, and diamonds. Attendants

Artemis' attendants include a group of young women that have pledged themselves to her Hunt, large hunting dogs and wolves, and the reindeer of her chariot.

Along with the Hunters of Artemis, Artemis helps Percy Jackson and his friends when they face the manticore, Dr. Thorn, at Westover Hall. She then goes on a mission west to hunt the Ophiotaurus, promising Percy that she will look for Annabeth Chase, who had been taken by the manticore.

Whilst hunting, Artemis is captured in an ambush by the Titan General Atlas, being used to lure Percy and his friends west, alongside Annabeth. By the time she was captured, Annabeth was holding the sky. Artemis couldn't simply stand by and watch a young maiden die, so she takes the sky from Annabeth, incapacitating her as Atlas had hoped. As Percy, Thalia Grace, and her lieutenant Zoë Nightshade arrive to rescue her, Percy takes the sky from Artemis so she can fight Atlas, as Percy and Zoë were no match for him.

Although she was exhausted from holding the sky, Artemis was able to hold her own against the Titan General during their battle and ultimately manages to force Atlas back, eventually pushing him back under the sky as Percy rolls out of the way. Unfortunately, Zoë then dies from the stab wound and gash that Ladon gave her. In honor of her memory, Artemis creates a constellation of her in the sky.

Artemis leaves to report to the Olympian Council, but not before promising to send help, namely Blackjack and his companions. She also praises Annabeth for her bravery and commends Percy for his heroism, calling him a "man" rather than a boy.

Artemis, Percy, Thalia, and Annabeth return to Olympus for the Winter Solstice. She is the first to suggest plans for war preparations against the Titans. She is honestly horrified at the vote of whether or not to destroy Percy, as he risked his life for them and stands up for him against the other Olympians when they vote. She makes Thalia her new lieutenant to replace Zoe and so that the council would spare her. On both her and Poseidon's word, the council votes to spare Percy.

The Battle of the Labyrinth

When Percy is fighting Geryon, the only way to defeat him was with an arrow, as Geryon's three bodies must be killed at the same time. Being a terrible shot, Percy asks Artemis and Apollo to guide his arrow, which manages to kill Geryon. As thanks, Percy offers a part of Geryon's barbecue to the gods after defeating the three-headed giant. Percy later learns that it was Hera that guided his arrow, not the archer twins.

The Last Olympian

In the Battle of Manhattan, Artemis battles Typhon alongside the other gods. She sent her hunters to help the demigods of Camp Half-Blood fight against Kronos' army. Although her hunters killed many monsters, her lieutenant Thalia had a statue of Hera fall on her legs before the final battle in Olympus.

In the council, after Kronos was defeated, Artemis convinced Hades to send her deceased Hunters to the Underworld realm of Elysium and congratulates Thalia on defending Manhattan.

The Heroes of Olympus

The Lost Hero

Artemis is noted to be one of the gods who disagreed with Zeus' decision to close Olympus. She sent out her Hunters to search for Percy, showing that she was still interfering in mortal affairs.

The Son of Neptune

When Percy sees Mount Tamalpais, Hazel Levesque tells him about how Camp Jupiter attacked the Titan base there. Percy remembers another time he was there with Artemis, Zoë, and Thalia fighting Atlas, but he couldn't remember their names and the memory soon leaves him.

She is also mentioned by Hylla as she explains to Hazel the difference between the Hunters and the Amazons.

The Mark of Athena

Along with most of the other Olympians, Artemis was incapacitated (with her personality split between her and her Roman form Diana) after Leo was manipulated by Gaea into shooting upon Camp Jupiter from the Argo II.

The House of Hades

When Percy sees her grandfather, the Titan Koios, he notes that he has Artemis's cold eyes.

The Blood of Olympus

After Leo, Frank, and Hazel travel to the island of Delos to find the final ingredient to the Physician's Cure from Apollo, the group is greeted by Artemis, who warns them about the onagers acquired by Octavian.

When Reyna finally manages to place the Athena Parthenos on Half-Blood Hill with the help of six pegasi, golden light ripples across the ground, seeping warmth into the bones of both Greek and Roman demigods and curing all of the Olympians (including Artemis) of their split personalities. As a result, Artemis and Apollo promptly leave Delos to participate in the final battle with the Giants in Athens. The twins help slay quite a few Giants with their arrows, after which Hades sends their bodies back to Tartarus by opening up abysses after each Giant is killed.

After the battle, Artemis attempts to soothe the rage of her father Zeus, who is determined to punish Hera and Apollo for letting another Gigantomachy happen. She tells this to Jason in his mind that she will reason with Zeus when he is calmer (it's possible since Jason not only stood up for Apollo, but because he is also the brother of Thalia, that Jason became one of the few males she favored). She watches as Zeus hurls the Argo II all the way back to Camp Half-Blood.

The Trials of Apollo

The Hidden Oracle

Artemis was mentioned by her brother numerous times, and he wonders if their father threatened her if she tried to make any form of contact with him. Apollo also wonders if Meg is Artemis in mortal form, stating that his sister usually appears as a twelve year old girl.

The Dark Prophecy

It is revealed that Zeus has prohibited Artemis from contacting her brother or ordering her Hunters to help him. Despite this, Artemis secretly sends Britomartis and other hunters to help Apollo on his quest.

The Burning Maze

Apollo mentioned his twin sister when stating he misses her.

The Tyrant's Tomb

Apollo mentions his sister throughout his time at Camp Jupiter, thinking of the times he flirted with her Hunters and feeling that she would like Lavinia Asimov. He is shown to prefer Artemis' Greek form to her Roman form of Diana.

During the Battle of San Francisco Bay, Apollo manages to summon his sister’s Roman aspect, Diana, who arrives just in time to cure him of his infection and kill Tarquin. After the battle, the two talk briefly before Diana leaves.

Thalia later explains that Diana had to leave as she couldn't risk overstaying her summons. However, Thalia admits that the goddess has been so worried about her brother that she has literally been beside herself - getting so worried that she splits into Artemis and Diana right in front of Thalia.

The Tower of Nero

In the "Advance Commentary" on the back cover of the book, Artemis was upset that her twin brother was still in trouble. She was worried she might have to come and help him again.

As she and the other Olympians watch her brother during the Battle of Nero's Tower, she begs Zeus to make him a god again and screams at Aphrodite for suggesting what would happen if Apollo died.

Two weeks after her brother becomes a god again, she is sitting by Apollo's side when he wakes up on Olympus and they share a hug.