John Buchan (1875-1940), author of over 100 books including The Thirty-Nine Steps, was a stealth writer of supernatural and Weird fiction. From the beginning of his career to his last works, he brought supernatural elements into his narratives to test his characters and thrill his readers. His 1932 novel The Gap in the Curtain was his last full-length work devoted to exploring a supernatural theme: if you were able to see one year into the future, what would you do with that foreknowledge? And what would it do to you? The novel tells the story of five country-house guests who are trained by the ailing Professor Moe, an Einsteinian mathematician who has devised a way of seeing into the future. These five guests gain one piece of knowledge from the experiment, and have to decide how to act on it. The episodes vary from high drama to social comedy, and use Buchan's skill in writing political intrigue and adventure abroad. This is a novel that showcases Buchan's talents as a storyteller, and is a thoroughly satisfying read. The Introduction is by Kate Macdonald, author of John Buchan. The Mystery Companion and many other works on Buchan's writing.