A Relentless Storm. A Desperate Plea. A Phantom Haunting a Desolate Isle.

When a fierce winter storm descends upon London, a summons more chilling than the wind itself reaches 221B Baker Street. A young woman, frantic with worry, presents letters from her friend, Eleanor Vance, a governess trapped on the remote, storm-lashed Atherly Island off the Cornish coast.

The letters speak of a desolate manor, a grieving family, and a terrifying spectral presence: the Grey Monk of Atherly. As an unnatural cold seeps through the ancient stones and a mysterious illness claims its victims, Miss Vance fears for her sanity, and her life.

Sherlock Holmes and Dr. Watson brave the treacherous crossing to the brooding island, only to find a household steeped in fear and superstition. Is the Grey Monk a true phantom, or a clever disguise for human malevolence? As Holmes navigates a web of dark secrets, family tragedy, and seemingly supernatural events, he must pit his legendary intellect against an enemy that thrives in the shadows, before the Atherly Phantom consumes all.

Fans of The Hound of the Baskervilles will find themselves right at home in this atmospheric and suspenseful new Holmesian novella where logic battles the uncanny, and human evil proves more terrifying than any ghost.