Leviathan (Leviathan Trilogy)

Leviathan is a fantastic and beautifully illustrated steampunk version of The Great War. In this alternate universe, the Clankers put their faith in elaborate steam-powered machines and the Darwinists manage huge living airships that are whole ecosystems. But this is mostly the story of two 15-year-olds who are both hiding secrets. Prepare yourself for an adventurous ride.