A classic from the delightful Sergeant Cribb series, set among Victorian London's spiritualist movement.

The spiritualist movement has captivated a segment of Victorian London: manifestations, the occult, and 'sensitives' are in vogue. Unfortunately, those ready to believe are vulnerable to fraud.

When séance sites become targets for theft, Sergeant Cribb and Constable Thackeray are on the case. But then someone murders the medium, and the two find themselves rubbing shoulders with some rather eccentric suspects.