The Mysterious Affair at Styles is a classic cozy antique mystery book written by Agatha Christie. In this captivating tale, Hercule Poirot, a renowned detective, is called to investigate a murder at Styles Court, an English country estate. With a cast of intriguing characters and a puzzling murder, this book will keep you guessing until the very end. Curl up with a cup of hot cocoa and immerse yourself in this atmospheric Christmas mystery.