
A Racing Murder by Frances Evesham
This is the second of the Ham Hill mysteries and, while it works as a stand-alone, you will definitely get to know the characters better by reading them in order. Adam is a pub owner and retired police officer and Imogene owns the local hotel. They are the main investigators, although this time around they have the help of a couple of friends, Steph, a reporter, and Dan, a painter. All four are competent and intelligent and each adds their own skills.
Belinda is the main suspect in the death, and her desperate mother asks for Adam's help. The local authorities deem the death an accident due to lack of evidence, but the local chief inspector asks Adam to continue looking into the case, not convinced it wasn't murder.
It turns out there are actually plenty of suspects, although no one has a really good motive. There are the investors who own the horse that Belinda rode. There are the grooms and...