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,...