Castle Shade: A novel of suspense featuring Mary Russell and Sherlock Holmes

In this gripping tale, Mary Russell and the iconic detective Sherlock Holmes are drawn into a web of intrigue that shrouds a centuries-old castle, long steeped in mystery. As they arrive to investigate a series of unsettling occurrences, they find themselves not only navigating the dark hallways of the castle but also unraveling the complexities of royal politics. A queen is at the heart of it all, and the stakes grow ever higher as they delve deeper into the enigma that surrounds her lineage and the secrets hidden within the stone walls.

As tensions rise, Mary and Sherlock must confront a malevolent presence that threatens not just the queen but also the foundation of their own relationship. The chilling atmosphere of the castle serves as a backdrop to a suspense-filled narrative where deception lurks in every corner, and danger seems ever-present. With wit, intelligence, and the unbreakable bond between them, Mary and Sherlock race against time to uncover the truth and protect those who walk the fine line between power and peril.