One of the best of this series . . . Lively and well-plotted." -The New York Times Book ReviewThe spiritualist movement has captivated a segment of Victorian London: manifestations, the occult, and "sensitives" are in vogue. 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.