New York : Simon & Schuster, 2013.
1st Simon & Schuster hardcover ed.
1 online resource (285 pages)
During a visit to Venice, Professor David Ullman--one of the world's leading authorities on demonic literature--witnesses a terror in a tiny attic room. Then his 12-year-old daughter Tess disappears before his eyes, and he must find her while confronting an unspeakable darkness along the way.