The Difference Engine by William Gibson and Bruce Sterling is a groundbreaking alternative history mystery that imagines a world where Charles Babbage's Analytical Engine was successfully built in the 19th century, leading to the early development of computers. Set in Victorian England, the story follows a group of characters who become entangled in a conspiracy involving advanced technology and political intrigue. Gibson and Sterling's collaboration creates a vivid and immersive alternative history that will captivate readers.