The County Guides to Murder are a series of detective novels set in 1930s England. The books are an odyssey through England and its history.
In each county, the protagonists - Stephen Sefton, a veteran of the Spanish Civil War, and his employer, the People's Professor, Swanton Morley - solve a murder. The first book is set in Norfolk. The murder is in the vicarage. There are 39 books - and 39 murders - to follow.