In this exclusive authorized edition from the Queen of Mystery, a young woman announces to Hercule Poirot that she's a murderer and then disappears, leaving the masterful investigator to figure out whether she is a criminal, a victim, or merely insane. Now with a beautiful new series look! Three young women share a London flat. The first is a coolly efficient secretary. The second is an artist. The third interrupts Hercule Poirot's breakfast confessing that she is a murderer--and then promptly disappears. Slowly, Poirot learns of the rumors surrounding the mysterious third girl, her family, and her disappearance. Yet hard evidence is needed before the great detective can pronounce her guilty, innocent, or insane.