Leviathan Wakes is a science fiction novel written by James S.A. Corey. It is the first book in The Expanse series. The story is set in a future where humanity has colonized the solar system and follows two main characters: Jim Holden, an officer on an ice hauler, and Miller, a detective on Ceres Station. When a mysterious alien protomolecule is discovered, Holden and Miller find themselves caught up in a conspiracy that could threaten the entire solar system. Leviathan Wakes combines elements of space opera, mystery, and political thriller.