The mystery of a secret room, scene of many murders, is unraveled by Carlos Paredes, the Panamanian Sherlock Holmes. It's a complex tale, fast-moving, with plenty of impressive twists and turns. It maintains an interesting equilibrium between a rational detective mystery and an assortiment of paranormal solutions, and explores a good variety of hypotheses in both directions. One result of this construction is that the mysterious scenes are really scary, and there is plenty of them. Also, the most supernatural twist of the story is a very possible paranormal occurence. A great read that keeps your mind racing and your pages turning.