The Glass Bead Game (Magister Ludi)

Nigel Ebbfleet, an author who after many years of effort has finally produced a successful book, settles down to live in a country cottage brought by the royalties of his hit work. However, his rural peace is shattered when he is killed in an explosion while chopping wood. Superintendent Jimmy Waghorn of Scotland Yard's investigation established that Ebbfleet was well-liked and no obvious motive is clear. But with a second murder and its accompanying alibis, and a rather gruesome and sensationalistic third murder, the plot thickens. With some assistance from Priestley, Waghorn is eventually able to solve the mystery.