From the acclaimed New York Times bestselling author of All the Missing Girls, comes “a clever, stylish mystery that will seize readers like a riptide” (Publishers Weekly, starred review) about an idyllic town in Maine dealing with the suspicious death of one of their own. There are those who “summer” in the coastal community of Littleport, and those who live there. Welcome to the one event of the year where wealthy summer residents and locals collide. No one expected a friendship between a vacationer and a local, but summer resident Sadie and local Avery aren't like other girls. But now Sadie is dead, and Avery–marked by the town's suspicions–must uncover what truly happened the night Sadie died... “A lightning-fast mystery, full of menace and unexpected twists and turns that will have readers on the edge of their seats. A riveting read!"—MARY KUBICA, New York Times bestselling author of The Good Girl "Once again, Megan Miranda has crafted the perfect summer thriller. The Last House Guest is twisty and tense, with a pace that made my heart race. An edge-of-your-seat, up-all-night read."—RILEY SAGER, New York Times bestselling author of The Last Time I Lied