Murder at Fenway Park, by Troy Soos. The first in a series of "Mickey Rawlings" baseball murder mysteries. I read them all. Great use of actual players and baseball atmosphere from the 1910's and 1920's. This is the kind of baseball fiction I would like to write myself.
Some Danger Involved: A Novel (Barker and Llewelyn Book 1) by Will Thomas, An atmospheric debut novel set on the gritty streets of Victorian London, Some Danger Involved introduces detective Cyrus Barker and his apprentice, Thomas Llewelyn, as they work to solve the gruesome murder of a young scholar.