And Then There Were None, written by Agatha Christie, is a classic mystery novel that has stood the test of time. Ten strangers are invited to a secluded island, only to find themselves trapped and accused of past crimes. As they start to die one by one, the remaining guests must work together to uncover the identity of the killer before it's too late. With its clever plot twists and suspenseful atmosphere, And Then There Were None is a masterpiece of the mystery genre.