Agatha Christie's iconic novel And Then There Were None ($8) is the blueprint for so many horror movies in Hollywood — if you've ever watched Clue, you'll definitely feel influences of this novel in that movie. In Christie's book, 10 people, each with something to hide, are invited to an isolated mansion by a mysterious host who fails to show up. One by one, the guests share their darkest secrets and wicked deeds, and one by one, they begin to die . . . which one is the killer, and will any of them make it out alive? Although this premise seems spooky, it's less "scary, keep-you-up-at-night" horror and more of an interesting mystery, just in time for Halloween.