New York, 1888. A young untested lawyer named Paul Cravath takes a case that seems impossible to win. Paul’s client, George Westinghouse, has been sued by Thomas Edison over a billion-dollar question: Who invented the lightbulb and holds the right to power the country? Edison is a dangerous opponent with a vast number of resources at his disposal, but in his pursuit to win, Paul finds himself crossing paths with Nikola Tesla, a brilliant inventor who may hold the key to defeating Edison, and with Agnes Huntington, a beautiful opera singer.
When literary researcher Harold White is inducted into the preeminent Sherlock Holmes enthusiast society, The Baker Street Irregulars, he never imagines he's about to be thrust onto the hunt for the holy grail of Holmes-ophiles: Arthur Conan Doyle’s missing diary, which may explain why Doyle decided to kill off his hero.