In this official authorized edition from the Queen of Mystery, four mystifying criminal conundrums test the detecting skills of the unflappable Hercule Poirot.How did a woman holding a pistol in her right hand manage to shoot herself in the left temple? What was the link between a ghost sighting and the disappearance of top secret military plans? How did the bullet that killed Sir Gervase shatter a mirror in another part of the room? And should the beautiful Valentine Chantry flee for her life from the holiday island of Rhodes?Hercule Poirot is faced with four mystifying cases--each a miniature classic of characterization, incident, and suspense.