God of music, poetry, and the sun who appears as a young man driving a sun chariot (disguised as a...

Chosen as one of the five questers despite being the newest Hunter. Her powers over shadows and the...

Museum maintenance worker who cleans exhibits and handles minor repairs.

Museum curator specializing in ancient Greek and Roman artifacts.

Group of elementary school children on a museum field trip, excited about dinosaurs.

Chosen as one of the questers to rescue Artemis. His wilderness skills and ability to track make...

Immortal huntresses who serve Artemis. Skilled warriors who have sworn off romantic love for...

Enthusiastic museum tour guide who leads school groups through exhibits.

Elementary school teacher leading a field trip to the museum.

Night security guard at the museum who investigates strange noises and disturbances.

Desperately wants to join the quest to rescue Artemis and find Annabeth, but is excluded from the...

Becomes ill after being sabotaged, forcing the quest group to choose a replacement member.

Security guard at the Natural History Museum in Washington D.C. who patrols the exhibits.

Chosen as one of the five questers to rescue Artemis and search for Annabeth. Her lightning powers...

Tourist father visiting the museum with his family, taking photos of exhibits.

Tourist mother trying to navigate the museum with a map and brochure.

Chosen to lead the quest to rescue Artemis. Despite her distrust of males, she must work with Percy...

Recently arrived half-blood who hasn't been claimed by a godly parent yet.

Hunter specializing in forest warfare and woodland tracking.

Captured by Dr. Thorn, the manticore, after pushing Percy out of harm's way. Her sacrifice saves...

Goes missing while hunting a powerful monster. The Oracle's prophecy reveals that a quest must be...

Ancient Greek hunter who has served Artemis since classical times.

One of Artemis's hunters who arrives with Zoë to fight Dr. Thorn. Known for her incredible speed.

Son of Athena studying under Malcolm while Annabeth is missing.

One of the younger cadets at Westover Hall attending his first school dance.

One of the military cadets at Westover Hall participating in the dance.

Military cadet at Westover Hall who witnessed the strange events at the dance.

A military cadet at Westover Hall present at the school dance.

Military cadet at Westover Hall who attended the school dance.

A military cadet at Westover Hall attending the school dance.

The lake at Camp Half-Blood where water activities take place, home to naiads and other water...

The forest surrounding Camp Half-Blood where capture the flag is played and various creatures live.

Various demigods at Camp Half-Blood dealing with the crisis of having three Big Three children...

The strawberry fields at Camp Half-Blood that help fund the camp through sales to mortals.

Son of Dionysus and twin brother of Pollux, head counselor of Dionysus cabin.

Son of Hephaestus and head counselor of the Hephaestus cabin, expert metalworker.

Helps organize the quest to rescue Artemis and provides guidance to the questers. Understands the...

One of the younger hunters of Artemis who helps train new recruits like Bianca.

Daughter of Ares and head counselor of the Ares cabin at Camp Half-Blood.

Son of Hermes and one of the Stoll brothers known for their pranks and thievery.

Hunter of Artemis skilled with a bow, part of Zoë's rescue team at Westover Hall.

New camper who arrived with electronic gadgets that keep malfunctioning.

Hunter who joined Artemis during the Roman era, bringing knowledge of Roman hunting techniques.

Captures Annabeth during the battle and escapes with her. His mission was to bring the di Angelo...

Daughter of Aphrodite with a mean streak and powerful charmspeak abilities.

Hunter of Artemis who joined during a full moon ceremony centuries ago.

The headmaster of Westover Hall military academy, responsible for school administration.

Son of Hephaestus working under Beckendorf in the forges.

One of the more recently recruited hunters, joined within the last century.

Hunter of Artemis known for her fierce temperament and skill with wild animals.

Daughter of Demeter and head counselor of the Demeter cabin, expert with plants.

Food service workers at Westover Hall who prepared refreshments for the dance.

Son of Apollo and head counselor of the Apollo cabin, skilled archer and healer.

Hunter of Artemis who specializes in moonlight combat and lunar magic.

School maintenance worker who keeps Westover Hall clean and secure.

Son of Athena and temporary head counselor while Annabeth is missing.

A monster with a human head, lion body, and scorpion tail that shoots poisonous spikes.

Frightened new arrival at Camp Half-Blood who witnessed monster attacks.

One of the oldest hunters of Artemis, second only to Zoë in experience and wisdom.

Small son of Apollo with exceptional archery skills despite his size.

Stern military instructor at Westover Hall who maintains discipline among the cadets.

Daughter of Demeter who helps Katie with the strawberry fields.

Camp director who continues to get Percy's name wrong. Seems more concerned than usual about the...

Mathematics teacher at Westover Hall helping supervise the school dance.

Administrative secretary at Westover Hall who handles school correspondence and records.

Teacher at Westover Hall serving as chaperone for the school dance.

School librarian at Westover Hall who manages the academy's library resources.

Young hunter of Artemis who specializes in night combat and stealth operations.

Devastated when Bianca chooses to join the Hunters of Artemis, effectively abandoning him. Feels...

Medical nurse at Westover Hall who tends to student injuries and health needs.

Elderly groundskeeper at Westover Hall who maintains the school's outdoor areas.

Son of Dionysus and twin brother of Castor, skilled with vine magic.

History teacher at Westover Hall who teaches about military history and strategy.

Skilled archer among the hunters who specializes in silver arrows blessed by Artemis.

Former military officer who supervises the dormitories at Westover Hall.

Daughter of Aphrodite and head counselor of the Aphrodite cabin.

Magical force that obscures supernatural events from mortal perception.

The mummified Oracle at Camp Half-Blood that gives prophecies. Speaks for the spirit of Delphi.

Son of Hermes and head counselor of the Hermes cabin, known for leading pranks.

Security guards at Westover Hall who patrol the buildings and grounds during events.

Military school students at the dance, unaware of the supernatural drama unfolding around them.