When Tom Crane is sent to the sleepy village of Coldad to investigate a poltergeist, he expects to uncover nothing more than an elaborate hoax. Then the terrified Wright family invite him to spend the night in their haunted house, and he gets to experience the unsettling phenomenon at a closer range than he might have liked.
The investigation takes an even more personal turn when Anne Reynolds turns up an old interview, hidden on a dusty cassette in the Department's archives.
Who was Margaret Grange, and why was Department 7 so interested in her life story? And could Coldad have a sinister connection with Edward Drexel, the evil magician who killed Tom's wife?