A decadent rock star. A deeply religious radio host. A disgraced scientist. And a teenage girl who may be the world's last hope. In the tradition of The Stand and Station Eleven comes a gripping saga that weaves an epic tapestry of humanity into an astonishing tale of survival. Shana wakes up one morning to discover her little sister in the grip of a strange malady. She appears to be sleepwalking. She cannot talk and cannot be woken up. And she is...