An amnesiac hero washes up at a Roman camp where death itself is chained in Alaska.
Who drives the story
A demigod son of Poseidon, stripped of his memories by Hera's scheme to unite the Greek and Roman camps. He must re-earn his heroism from nothing, and in doing so becomes a Roman praetor while keeping his Greek heart.
A daughter of Pluto from New Orleans who died in 1942 and was resurrected by her half-brother Nico. She commands gems and the Mist, and freeing Thanatos finally clears the guilt of her first death.
A Chinese Canadian son of Mars with a life tied to a piece of firewood and a shapeshifting gift inherited from Periclymenus. He starts as the camp's clumsy outcast and ends a hero who saves everyone at the glacier.
Daughter of Bellona and praetor of Camp Jupiter, once a servant of the witch Circe. She judges Percy fairly and accepts him as co-praetor when he earns it.
Also in the story
The camp's augur, a legacy of Apollo who reads omens by ripping apart stuffed animals. He distrusts Percy from the start and embodies the camp's suspicion of outsiders.
Son of Pluto and Hazel's half-brother, dark and melancholic since losing his sister. He resurrected Hazel and warns about the doors of death.
A red-haired harpy with a photographic memory who memorized the Sibylline Books. She escapes her tormentor Phineas and becomes the keeper of prophecies.
The fussy statue god of boundaries at the center of New Rome, obsessed with rules. His obsession pays off when he holds Polybotes still for the killing blow.
How they are connected
A daughter of Pluto from New Orleans who died in 1942 and was resurrected by her half-brother Nico.
Reyna Avila Ramirez-ArellanoPercy Jackson
She judges Percy fairly and accepts him as co-praetor when he earns it.
He distrusts Percy from the start and embodies the camp's suspicion of outsiders.
Go deeper
Identity rebuilt from scratch · Second chances and the weight of the past · Greece and Rome, two halves of one world · Death as a necessary order
Themes explainedThe full story act by act, the ending explained and a quick quiz.
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