Night of the New Magicians by Mary Pope Osborne

Jack and Annie travel to the 1889 Paris World’s Fair to find four great magicians—who turn out to be real-world inventors like Thomas Edison and Louis Pasteur. Disguised and curious, they sneak into exhibitions, escape suspicious figures, and uncover scientific marvels. Their mission is to identify and protect these brilliant minds from an unknown threat. This story celebrates science, discovery, and imagination in a historical setting. It’s a thrilling blend of fact and fantasy.