The Difference Engine (Spectra Special Editions)

Amazon.com

A collaborative novel from the premier cyberpunk authors, William Gibson and Bruce Sterling. Part detective story, part historical thriller, The Difference Engine takes us not forward but back, to an imagined 1885: the Industrial Revolution is in full and inexorable swing, powered by steam-driven, cybernetic engines. Charles Babbage perfects his Analytical Engine, and the computer age arrives a century ahead of its time.