John Buchan (1875-1940) was a versatile and prolific Scottish author, whose literary career spanned genres including thriller, adventure, and supernatural mystery. Buchan is best remembered for his espionage novels, particularly for creating the character Richard Hannay, who appears in his most famous work, 'The Thirty-Nine Steps' (1915). His mark in the literary world, however, also includes contributions to the supernatural and mystical, a fine example of which is 'Supernatural Mysteries'. Combining historical insight with an exploration of the unknown, Buchan's stories in this collection delve into the eerie and arcane, showcasing his skill in evoking the otherworldly through suspenseful prose. His work often reflects his own diverse experiences, which included careers in law, publishing, politics – where he served as the Governor General of Canada – and as a war correspondent during World War I. Buchan's literary style seamlessly blends action with cerebral elements, weaving in his knowledge of politics and history. Appreciated for his narrative craftsmanship and attention to detail, Buchan's impact on the spy and adventure genres, as well as the supernatural mystery, remains influential, leaving an indelible mark on the fabric of early 20th-century literature.