'Iceland's outstanding crime novelist' Daily ExpressOn a jagged, bleak lava field just outside Reykjavik stands the Gallows Rock. Once a place of execution, it is now a tourist attraction. Until this morning, when a man was found hanging from it...The nail embedded in his chest proves it wasn't suicide. But when the police go to his flat, a further puzzle awaits: a four-year-old boy has been left there. He doesn't seem to have any link with the victim, his parents cannot be f