In An Old Betrayal , the seventh book of Charles Finch's bestselling series of Victorian mysteries, a case of mistaken identity has Charles Lenox playing for his highest stakes yet: the safety of Queen Victoria herself. On a spring morning in London, 1875, Charles Lenox agrees to take time away from his busy schedule as a Member of Parliament to meet an old protege's client at Charing Cross. But when their cryptic encounter seems to lead, days later,...