Victorian London . . . but not one in any history book. In an alternate 1858, England has entered a golden age of technology, of steam and electricity. Airships fill the skies, mechanical computers command the trains and trams, and a country-wide communication network reaches into every home and office. Newspaperman Cornelius Gunn investigates a series of thefts across London. Someone is stealing inventions and designs-for what purpose, Gunn can't even guess. While attempting to identify the criminals, he and his feisty wife, Sophie, meet the enigmatic Dr. Bohemia. Before they know it, they're on the trail of a conspiracy, and swept into an adventure that carries them to Paris and back, and a fight against a mysterious and powerful enemy. The stakes are high. If they fail, all of Europe will be plunged into war.