Human: Why does Poirot deduce that Angela must have read "The Moon and Sixpence"? Assistant: 
Poirot deduces that Angela must have read "The Moon and Sixpence" because Angela expresses the hope that Amyas would die of leprosy. The central character of "The Moon and Sixpence", Charles Strickland, is a stockbroker who deserts his wife and children to become an artist and eventually dies of leprosy.