Reading a Cara Black mystery is like a brisk jog. You trot alongside private investigator Aimée Leduc as she pieces together clues and sometimes runs for her life while solving a murder. Meanwhile, the sights and sounds of Paris go by: hot bread, honking horns, lovers in a park. It’s always a chic, action-filled journey and Black’s latest novel, Murder on the Left Bank, is no exception. Book number 18 of the Aimée Leduc Investigation series focuses on the murder of a young man tasked with transporting a very desirable…