The Mysterious Affair at Styles

This classic mystery novel features Hercule Poirot, a Belgian detective settling in England near the wealthy benefactress who takes him in. When she is poisoned and the authorities are stumped, Poirot uses his prodigious sleuthing skills to solve the mystery. With a variety of possible suspects, including the victim's husband and resentful stepsons, Poirot must navigate red herrings and plot twists to uncover the culprit. Agatha Christie's debut novel is a gripping and ingenious tale, cementing her status as the queen of mystery.