High school seniors Aria, Emily, Hanna and Spencer barely survived the trap that their stalkers set for them. But at least the cops caught one of their enemies. The only problem is, nobody believes there's another A still out there. A's trail is cold and all the girls can do is stay vigilant. Because there's one thing they know for sure: A won't stop until they're six feet under. New York Times bestselling author Sara Shepard packs deadly secrets and shocking plot twists into the latest Pretty Little Liars volume, making it perfect for fans of the hit ABC Family show.