A teen forms a coven at her boarding school in this prequel to the New York Times bestselling Private series that reveals the true origin of Billings House. The year is 1915 when sixteen-year-old Eliza Williams arrives at the Billings School for Girls in Easton, Connecticut. Her parents expect her to learn the qualities of a graceful, dutiful wife. But Eliza and her housemates have a dangerous secret: They're witches. After...