A Boston Globe Best Mystery of the Year Rebus comes out of retirement...to save his nemesis. Detective Inspector Siobhan Clarke is feeling the heat. She's investigating the death of a senior government prosecutor, David Minton, who has friends in high places. When one of their own is killed, the powers that be want answers fast. But Clarke is puzzled: if Minton died in a robbery as everyone thinks, why is nothing missing from his home? The answer may lie not in what was taken, but in what was left behind at the scene--an ominous note. Malcolm Fox is feeling useless. Shunned by his colleagues because of his past in the Complaints bureau, he's been reassigned to a grunt detail, helping a surveillance team--one that trusts him even less than his own boss does--track a notorious Glasgow crime family. Helping Clarke with the Minton case is the only thing that makes Fox feel like a real cop. Newly minted civilian John Rebus is feeling restless. Being a cop is in his blood and he's failing miserably at retirement. So when Clarke and Fox ask for his help, Rebus doesn't need long to consider his options. But before he can get his bearings, a call comes from Rebus's old nemesis--"Big Ger" Cafferty. Someone just fired a bullet through his front window--and sent him a note identical to Minton's. The normally unflappable old gangster is on edge, but for the life of him Cafferty can't figure out who he's wronged. And the only man he trusts with his life is Rebus. As the cases collide, it's