Leviathan by Scott Westerfeld

Leviathan is a historical fiction book set in an alternate World War I. The Darwinists (England and it's allies) and the Clankers (Germany, Austria-Hungary, etc.) are on the brink of war. The Darwinists have kind of hybrid animals that they use as planes and a method of transport. The Clankers use machines. Deryn is pretending to be a boy in the air force, where she is placed upon the Leviathan, a giant whale, aircraft. Alek is the heir to the Austro-Hungarian throne, but his people have turned on hime and he's on the run. Together they meet aboard the Leviathan, and sends them on an adventure that will change their livews forever. I quite liked this book , though sometimes Deryn annoyed me, but overall I enjoyed it. I think this book is meant to be YA, though it gave off more of a middle grade vibe. 4 stars, 80%