Each of Me a Stranger

Ayla Rennik dies for a living. As the colony ship Perdurance's designated iterant, she is backed up every seventy-two hours and reprinted whenever a job proves fatal — six bodies so far, each waking with holes where the last hours should be. Sent to survey a cavern beneath the world her twenty-two hundred sleeping colonists will call home, she finds carvings no human made, and a man the ship's records insist has been dead for two years. What he knows about her backups will cost her everything to prove.