It turns out, machines can be pretty damn good at spinning up a tale of murder, dread, despair, and supernatural terror. At least one is—Shelley A.I., a horror-writing bot created by researchers at the MIT Media Lab, debuting just in time for Halloween this year. Named after Frankenstein author Mary Shelley, the little horror-author-that-could is a deep learning algorithm that reads stories published in terror-inducing /r/nosleep subreddit and trains itself to write its own horror fiction.