[Atria] From the New York Times bestselling author of Homecoming comes a “moody, suspenseful page-turner” (People, Best Book Pick) filled with mystery and spellbinding secrets. Living on her family’s idyllic lakeside estate in Cornwall, England, Alice Edevane is a bright, inquisitive, and precociously talented sixteen-year-old who loves to write stories. One midsummer’s eve, after a beautiful party drawing hundreds of guests to the estate has ended, the Edevanes discover that their youngest child, eleven-month-old Theo, has vanished without a trace. He is never found, and the family is torn apart, the house abandoned. Decades later, Alice is living in London, having enjoyed a long successful career as a novelist. Miles away, Sadie Sparrow, a young detective in the London police force, is staying at her grandfather’s house in Cornwall. While out walking one day, she stumbles upon the old Edevane estate—now crumbling and covered with vines. Her curiosity is sparked, setti