Paris, 1941. A family of scientists is on the brink of a powerful discovery when a mysterious force suddenly abducts them, leaving their young daughter April behind. Years later, April carries on her family's research in secret with her cat, Darwin, but soon finds herself at the center of a shadowy conspiracy and on the run from government agents, bicycle-powered airships and cyborg rat spies! A rollicking adventure set in an imaginative alternate universe, April and the Extraordinary World is "beautiful, inventive and uncannily satisfying!" (Glenn Kenny, The New York Times)