The House at Satan's Elbow

Easily one of the worst Carr novels I've read. Characters speak as no human being speaks, as if their sole purpose is exposition. Carr's most annoying tricks (interruptions when a revelation is about to occur, characters keeping information secret for no reason) are on full display here, and by the time the “mystery” is revealed, it's hard to care any more. Stick with the early novels. They are at least fresh, both in ideas and delivery.