The Edison effect

"Inventor Thomas Alva Edison is a ruthless businessman, intent on advancing General Electric and beating all rivals like Nikola Tesla and Westinghouse. Edison has agents in place in Seattle but he's come himself in pursuit of a mysterious invention lost in 1901 in Elliott Bay. When Edison asks for information, few refuse. But not University of Washington Professor Benjamin Bradshaw who's earned a reputation as a private investigator where science--electricity--is concerned. Bradshaw hopes that the lost device, one conceived in anger by an anarchist and harnessed for murder, will elude…