Tom Crane is supposed to be taking a break from the paranormal, but a plea from Anne draws him unwillingly back. Something is happening to a group of performers at the Edinburgh Festival - preternaturally talented children working closely with Department 7 - and even the usually unflappable Martindale is spooked.
Why is Tom so affected by the children's performances? Who stands to benefit from their bewitching talents? And what is the connection with the mysterious Morag, who has started haunting Tom’s dreams...?