Mary Russell and Sherlock Holmes turn the Riviera upside down to crack their most captivating case yet in the New York Times bestselling series that Lee Child called "the most sustained feat of imagination in mystery fiction today." It's summertime on the Riviera, and the Jazz Age has come to France's once-sleepy beaches. From their music-filled terraces, American expatriates gaze along the coastline at the lights of Monte Carlo,...