A celebrated poet's descent into madness and murder draws Sherlock Holmes into a case where the supernatural seems to hold sway. The brilliant detective and his loyal companion, Dr. Watson, are summoned to investigate a series of bizarre events surrounding the poet, whose increasingly erratic behavior culminates in a violent crime. Holmes must unravel whether the poet is truly possessed or if a more earthly, albeit sinister, explanation lies beneath the surface of this perplexing enigma, all while navigating the shadowed confines of the poet's haunted existence.

The premise of a Sherlock Holmes story delving into the supernatural and psychological horror suggests a narrative that plays on the reader's expectations of both the detective genre and gothic literature. The inclusion of a 'bedevilled poet' points towards themes of artistic torment, madness, and the uncanny, likely explored through Holmes's rational lens against a backdrop of perceived supernatural influence. The novella format implies a concentrated plot, allowing for a swift build-up of suspense and a focused resolution. This particular entry in the 'NewCon Press Novellas Set 2' likely appeals to fans of both classic detective fiction and modern horror, offering a unique blend of intellectual puzzle-solving and atmospheric dread.