For centuries magicians have compiled grimoires to call up demons. In Victorian London an ambitious warlock called Peter Owling designs a book to summon the Lord of Demons himself and thereby achieve eternal life. But not even his beautiful young acolyte Christian grasps the full extent of his master’s plans … In 20th-century Melbourne, a group meets in secret at Humberstone College, dedicated to reassembling Owling’s book. But there are others meeting at Humberstone, too: three students drawn to the College’s mysterious past, its gloomy underground labyrinth and what they come to suspect are its current secrets. When a beautiful man appears to one of them in a mirror, he says he carries a warning … but can his dreadful story be true?