- xv, 304 pages ; 20 cm.
- First published: 1926.Summary: This is the book that made Agatha Christie a household name and launched her career as a perennial bestseller. Originally published in 1926, it is a landmark in the mystery genre. It was in the vanguard of a new class of popular detective fiction that ushered in the modern era of mystery novels. In the village of King's Abbot, a widow's sudden suicide sparks rumors that she murdered her first husband, was being blackmailed, and was carrying on a secret affair with the wealthy Roger Ackroyd. The following evening, Ackroyd is murdered in his locked study--but not before receiving a letter identifying the widow's blackmailer. King's Abbot is crawling with suspects, including a butler, Ackroyd's stepson, and his sister-in-law, Mrs. Cecil Ackroyd, who has taken up residence in the victim's home. It is now up to Hercule Poirot to solve the case of who killed Roger Ackroyd, a task in which he is aided by the village doctor James Sheppard and by Sheppard's ingenious sister, Caroline.