In The Devil's Workshop, London discovered that Jack the Ripper was back, sending the city and Scotland Yard's Murder Squad into chaos. But now it is even worse. Not only is the Ripper still at large, but so is another killer just as bad. For Inspector Walter Day, it has been a difficult time. His wife has given birth to twins, his hostile in-laws have come to stay, and a leg injury has kept him at his desk. But when the Harvest Man begins killing, carving people's faces off their skulls, the Yard knows they need Day in the field.