The Hercule Poirot Collection includes three books by Agatha Christie; The Mysterious Affair at Styles, The Murder on the Links, and Poirot Investigates. The Mysterious Affair at Styles opens with the discovery that the elderly Emily Inglethorp, has been poisoned. Upon his arrival, inspector Hercule Poirot is faced with a mystery of how poison was administered to Inglethorp, and who would benefit most from her considerable wealth. Poirot must discover every link in a chain of evidence in order to unravel the whole complicated plot and lay the guilt where it belongs. In The Murder on the Links, Inspector Hercule Poirot and Captain Hastings travel to Merlinville-sur-Mer, France, to meet Paul Renauld, who has requested their help. Upon arriving at his home, the local police greet them with news that Renauld has been found dead that morning. What follows is an enthralling mystery, with Poirot piecing together clues and peculiar events to solve the most difficult case of his detective career. Poirot Investigates is a collection of eleven short stories involving the famed eccentric detective, Hercule Poirot. The problems Poirot unravels are skilfully tangled, and unravelled by the detective's omniscient genius. Throughout the tales, which include The Adventure of the Western Star, The Adventure of the Egyptian Tomb, and The Kidnapped Prime Minister, Poirot must solve a variety of mysteries involving greed, jealousy, and revenge.