Sherlock Holmes: The Shadows Series

When the sacred relics and mystical objects of London begin disappearing, Sherlock Holmes must call on more than his powers of deduction to solve a mystery that threatens the safety of the British Empire and Doctor Watsons mortal soul.

The convalescing Watson's country holiday is brought to an abrupt end when an eccentric recluse named Edgar Telfair demands that Holmes investigate his daughter's disappearance. Holmes' refusal to take the case is followed by Telfair's sudden, horrific slaying. The act revives Watson's suppressed memories of the Shadows and reintroduces him to Holmes' double life. Together Holmes and Watson must find Alice Telfair, a witch whose shocking powers are obtained through blood magic, the vilest form of sorcery. 

In a new novel of supernatural adventure, Sherlock Holmes faces his greatest challenge, to locate and defeat the wraith of a powerful wizard. With the assistance of an incorruptible saint, an immortal librarian, a troupe of ghosts, a Scotland Yard Inspector, and, of course, Dr. Watson, Holmes finds himself in a race against time to protect both the human world and the Shadows from "the most evil man who ever lived".