In the snowbound landscape of the Cambridgeshire fens, a body is discovered locked in a block of ice. The following day high on Ely Cathedral a second corpse is found, grotesquely 'riding' a stone gargoyle. Journalist Philip Dryden knows he's on to a great story when forensic evidence links both victims to one terrifying event in 1966. But the murders also offer Dryden the key to a very personal mystery. Who saved his life two years ago - and, more importantly, who left his wife to die? The answer will bring Dryden face to face with his own guilt, his own fears - and a cold and ruthless killer . . .