Hydra

A young archaeologist who leads relic hunting in the island’s caves. She is brave, scientifically minded, and acts as a catalyst for Tim’s actions. Her dedication and sacrifice in the Hydra encounter highlight the cost of pursuing knowledge in the face of monstrous danger.

A colleague accompanying Cammon who shares expertise in science and archaeology. He perishes when the ship sinks during the seaquake, underscoring the fragility of life even among seasoned researchers.

An ex-convict who becomes the group’s practical survivor and reluctant leader. He seeks the legendary sword to defend against the Hydra and grows into a true-though-flawed hero as the hunt tests his ethics and resolve.

A bold, morally ambiguous former associate who is marooned with the fugitives. She forms uneasy alliances and fights to stay alive, revealing a tough, resourceful side under pressure.

One of the four ex-convicts marooned with a 24-hour head start. He is driven by personal losses and becomes entangled in the deadly struggle against both the hunters and the Hydra.

Another ex-convict among the marooned group. His fate is tied to the Hydra’s approach as danger intensifies and loyalties fracture under pressure.

A member of the Camden cohort who becomes a target in the Hydra’s pursuit. She embodies the peril of the hunt and the human cost of survival on the island.