The golden age of detective fiction left behind many star names—A. Christie, G. K. Chesterton, G. Leroux, and others. In this bright constellation, John Dixon Carr (1906–1977) holds the most honorable place. Carr’s novels leave no room for wild chases and shootouts, and the circle of suspects is kept to the minimum. Carr lures the reader into a web of false clues, misleading moves, and subtle hints—inviting you to take part in solving a clever puzzle by unraveling the threads of “impossible crimes.” In a luxurious mansion, a perfect murder is committed—the criminal left a locked room “from the inside,” like a ghost. Dr. Gideon Fell must untangle the knot of family secrets and deception to find the answer.