As Claire's investigation deepens, she comes face-to-face with the Phantom of Ravenwood in the attic, a ghostly figure warning her to leave or face the same fate as the Blackwoods. Determined to uncover the truth, Claire discovers a diary belonging to Evelyn's great-grandmother, Margaret Blackwood, detailing a hidden passage and an ancient ritual meant to control the Phantom. With the help of occult expert Dr. Marcus Harker, Claire and Evelyn attempt to perform the ritual to calm the Phantom ...