The Adventure of Mrs. J. L. Heber

In this gripping Sherlock Holmes adventure, a crazed woman is committing lethal murders in London, prompting Scotland Yard to seek Holmes's help. As Holmes, Watson, and Lestrade race against time, they uncover a connection to a long-ago betrayal in the Canadian Rocky Mountains. The story pays homage to the original Holmes tale, The Adventure of Black Peter, as the team works to prevent further tragedy.