The Identity Illusion

This is the 22nd novel in the Pitkirtly Mysteries series, set in a small fictitious town on the south coast of Fife which is definitely not Culross, though quite close to it geographically.
Kyle is sent to Old Pitkirtlyhill House, once the home of the Murray family and now in the possession of the local council, to review a collection of documents stored in the attics. This task is complicated by a grim discovery and by multiple questions of identity. A mysterious newcomer to Pitkirtly works with Jemima to reveal the truth.