"Pierre Herry is on the run. Not just from the police, who suspect him of a double murder, but also from the memory of the circumstances in which two impossible crimes were committed in the ruined castle which is the hereditary seat of the Comte de Saint-Luce, an old big-game hunting friend from the past. The castle is virtually inaccessible, situated as it is in a high-walled park on a desolate stretch of moorland not far from Versailles On his first visit, four years ago, one of the other guests had disappeared in inexplicable circumstances just after Herry had heard the distant howling of an unknown beast. Now, following threatening letters and renewed howling, the Comte and the wife of the earlier guest have been killed before his very eyes. How can he defend himself if he cannot explain what happened? M. Allou explains everything in this masterpiece of French locked room literature."--Page 4 of cover.