"And Then There Were None" is a mystery novel by Agatha Christie, first published in 1939. The novel tells the story of eight strangers who are invited to an isolated island off the coast of Devon, England. Each of the guests has a mysterious past and a secret that they are trying to hide.
As the guests arrive on the island, they are greeted by their host, Mr. Owen. However, Mr. Owen is nowhere to be found, and the guests are left to entertain themselves in the mansion on the island. As the days pass, strange events begin to occur on the island. A poem is found in each of the guest's rooms, accusing them of a past crime that they have gotten away with.
As the guests try to figure out who is responsible for the poem and the strange events on the island, they begin to turn on each other, suspecting that one of them is the guilty party. One by one, the guests begin to die, and it becomes clear that someone on the island is a killer.
As the bodies pile up, the remaining guests become more and more paranoid, and the tension on the island reaches a breaking point. Eventually, only two guests are left alive, and they discover that the killer was actually Mr. Owen, who had faked his own death and was using the island as a means to enact revenge on the guests for their past crimes.
"And Then There Were None" is a classic mystery novel that keeps the reader guessing until the very end. Its intricate plot and well-developed characters make it a must-read for fans of the mystery genre.