Brian L. Porter 
A Mersey Maiden [EPUB ebook] 

A peaceful cricket match turns to mystery, when star player Aaron Decker is found dead. Somehow, the case is connected to the disappearance of a German U-Boat in 1945.
With events in Britain, Germany, U.S and Canada all connected, D.I. Andy Ross and his team must work together with international law enforcement and a respected German historian.
But can they solve the murder of Aaron Decker, and the strange case of U3000’s last voyage?