A brand new Poirot omnibus, featuring four of the world-renowned detective's most challenging cases: The Murder of Roger Ackroyd, Murder on the Orient Express, Murder in the Mews and Hercule Poirot's Christmas. It seems Hercule Poirot can never escape murder -- and in this collection, the crimes are probably the finest he has ever had to solve. Locked rooms, wealth and jealousy -- outwardly all very similar, but when the detective begins to dig, the motives and solutions couldn't be more different. . . The Murder of Roger Ackroyd In the quiet village of King's Abbot, a wealthy widower is found stabbbed to death in his study. . . Murder on the Orient Express A wealthy American dies of multiple stab wounds on a train bound for Paris. . . Murder in the Mews A widow is murdered in her apartment. . . Hercule Poirot's Christmas A sadistic old man is brutally murdered in his locked study. . .