Murder on the Orient Express is a classic cozy antique mystery book written by Agatha Christie. It takes place aboard the luxurious Orient Express train, where a murder occurs during a snowstorm. The famous detective Hercule Poirot is on board and must unravel the clues to identify the killer. With its atmospheric setting and clever plot twists, Murder on the Orient Express is a gripping read that keeps readers guessing until the very end.