When a close colleague is brutally attacked, Inspector John Rebus is drawn into a case involving a hotel fire, an unidentified body, and a long forgotten night of terror and murder. Pursued by dangerous ghosts and tormented by the coded secrets of his colleague's notebook, Rebus must piece together the most complex and confusing of jigsaws. But not everyone wants the puzzle solved - perhaps not even Rebus himself ...

It is August in Edinburgh and the Festival is in full swing... A brutally tortured body is discovered in one of the city's ancient subterranean streets and marks on the corpse cause Rebus to suspect the involvement of sectarian activists. The prospect of a terrorist atrocity in a city heaving with tourists is almost unthinkable. When the victim turns out to be the son of a notorious gangster, Rebus realises he is sitting atop a volcano of mayhem - and it's just about to erupt.

They call him the Wolfman - because he takes a nip out of his victims and because they found the first victim in the East End's lonely Wolf Street. But there's no urban predator that Rebus fears. When Scotland Yard are anxious to find the last serial killer on their patch they look north and soon Rebus is on his way south from the chill of Edinburgh to the rain of London.

Stalking a poisoner at the local zoo, Inspector John Rebus comes across a paedophile taking pictures of children. When the social workers claim he is there for legitimate educational reasons, Rebus is faced with a dilemma - should he be outed to protect local kids or given a chance to start anew? As the locals begin a hate campaign, Rebus gets a call from the past: The son of a friend has gone missing, and no one else will make time to ask the right questions.

A student has gone missing in Edinburgh - completely out of character. She's not just any student, though, but the daughter of extremely well-to-do and influential bankers. There's almost nothing to go on until Detective Inspector John Rebus gets an unmistakable gut feeling that there's more to this than just another runaway spaced out on unaccustomed freedom or worse.