The Mysterious Affair at Styles
by Agatha Christie
Stiles' heir was killed, dying in pain from the strychnine who slipped into his coffee. And there are many who would benefit from his death: a financially bonded stepson, a young man digging gold, and an angry bride. Agatha Christie's eccentric and extremely popular detective Hercule Poirot is introduced to the world in this book, which leads her career as the most famous and beloved of all mystery writers.