In this gripping sequel to The Line Between, which New York Times bestselling author Alex Kava calls “everything you want in a thriller,” cult escapee Wynter Roth and ex-soldier Chase Miller emerge from their bunker to find a country ravaged by disease, and Wynter is the only one who can save it.

Six months after vanishing into an underground silo with sixty others, Wynter and Chase emerge to find the area abandoned. There is no sign of Noah and the rest of the group that was supposed to greet them when they emerged—