Ian Rankin

Detective John Rebus: His city is being terrorized by a baffling series of murders...and he's tied to a maniac by an invisible knot of blood. Once John Rebus served in Britain's elite SAS. Now he's an Edinburgh cop who hides from his memories, misses promotions and ignores a series of crank letters. But as the …

Watchman is a 1988 novel written by Ian Rankin, and is one of the author's earliest works. Originally published in 1988, it was reissued with a new introduction by Rankin in 2004.