Millions of copies sold worldwide. The author of the Department Z novels is back.rnrnSir Basil Riordan is mysterious, frightening, and an immensely wealthy man. But is he also a killer? As head of England's elite secret service, "Z" Department, Gordon Craigie has to find out.rnrnIt wasn't an easy investigation. Too many important people were involved. A member of an exclusive London Club has been poisoned. Could Riordan or his son, Marcus, be involved?rnrnCraigie assigns his best agent, Devenish, to find the truth. But what Devenish finds is no clear-cut case of homicide. He uncovers a mad masquerade of murder, larceny, and deceit of the highest order.rnrnBefore long, it looks like he and Craigie are in over their heads.