“A classic New England literary mystery pitched somewhere between The Secret History, If We Were Villains, and L’Avventura, with all of Dwyer's economy and wit. I loved it.” —Adrian McKinty, New York Times bestselling author of The Island “A delicious, brooding heart-stopper of a book.” —Téa Obreht, New York Times bestselling author of Inland When a group of old college friends reunites for a summer vacation at a beach house in coastal Massachusetts, a sudden…