The Affair of the Incognito Tenant: A Mystery with Sherlock Holmes Book

After his supposed death at Reichenbach falls, Holmes traveled to keep ahead of Moriarty's henchmen, namely Moran. In this pastiche, Holmes has leased a home in Sussex under the assumed name of Mr. Sigerson. He meets his housekeeper Charlotte Dodson, a widow, who is resourceful and quite intelligent in her own right. Soon trouble finds this unlikely pair teaming up to solve the mystery of a hidden jewel called the Orb of Kezir that was owned by the previous inhabitant of the house. Many people want the Orb, possibly including an escaped convict from Dartmoor prison.

The story is well written and, I think unusual, in that Holmes is actually placed as a secondary character to Charlotte. Very recommended.