‘I turned on the light, but there was nobody there. Then I saw something in the corner that made my blood turn cold. Scudder was lying on his back. There was a long knife through his heart, pinning him to the floor.’ Soon Richard Hannay is running for his life across the hills of Scotland. The police are chasing him for a murder he did not do, and another, more dangerous enemy is chasing him as well for the mysterious ‘Black Stone’. Who are these people? And why do they want Hannay dead?