In this Hugo nominated science fiction thriller a crew of clones awakens aboard a space ship to find they're being hunted-and any one of them could be the killer.

Maria Arena awakens in a cloning vat streaked with drying blood. She has no memory of how she died. This is new; before, when she had awakened as a new clone, her first memory was of how she died.

Maria's vat is one of seven, each one holding the clone of a crew member of the starship Dormire, each clone waiting for its previous incarnation to die so it can awaken. And Maria isn't the only one to die recently...