Part locked-room mystery, part metafictional narrative, this engaging futuristic adventure isn’t quite sure what it wants to be. On the surface, it’s about an unnamed narrator, a 25th-century investigator for the Bureau Veritas, who, nearing the end of a relatively quiet career, is assigned a bizarre case involving a murder-suicide. The book is also the tale of Goliath, one of the prime suspects, who dwells far from civilization and spins yarns about time travel and cloning. As the two threads intertwine, the narrative takes on an increasingly self-aware, unreliable air, culminating in an appropriately convoluted fashion. Cant’s style is leisurely, even tongue-in-cheek, with a prim sensibility, e.g., “The climate is hot except in the places where it is cold.” The plot is stretched and twisted considerably via numerous digressions and expository passages. Nonetheless, the mystery at the heart of the novel and the book’s underlying sense of wonder will appeal to fans of the genre.