Two sisters raised in fear are about to find out why in a chilling novel of psychological suspense from the author of The Thinnest Air. Ignorant of civilization and cautioned against its evils, nineteen-year-old Wren and her two sisters, Sage and Evie, were raised in off-the-grid isolation in a primitive cabin in upstate New York. When the youngest grows gravely ill, their mother leaves with the child to get help from a nearby town...