This term will be reading some successful authors with long running series. Each series has an astute detective, although these detectives may be a bit unconventional. One works alone, one works with team and the other relies on a highborn amateur colleague.  But all solve their mystery. 

Still Life (Inspector Gamache) by Louise Penny

The Sweetness at the Bottom of the Pie (Flavia de Luce) by Alan Bradley

The Man with a Load of Mischief (Richard Jury) by Martha Grimes