Seven-year-old Wen and her parents, Eric and Andrew, are vacationing at a remote cabin on a quiet New Hampshire lake. Their closest neighbours are more than two miles in either direction along a rutted dirt road. One afternoon, as Wen catches grasshoppers in the front yard, a stranger unexpectedly appears in the driveway. Thus begins an unbearably tense, gripping tale of paranoia, sacrifice, apocalypse and survival that escalates to a shattering conclusion,...