This alternate history, steampunk novel is set when the world is about to plunge into World War I. The Austro-Hungarian and German forces have manufactured war machines they call Clankers. These giant machines are powered entirely by steam, and are fitted with giant machine guns and reloadable ammunition—the world has seen nothing like them before! In retaliation, British forces having been breeding animals to become machines. The pride of their air force is a giant machine called the Leviathan—it is a whale crossed with a plane, deadly and with a mind of its own.
The prince of the Austro-Hungarian Empire, Aleksander Ferdinand, who has no royal blood on his mother’s side, has been forcibly removed from his palace and is on the run from being murdered by members of his own court. At the same time, British Devyn Sharp, a young woman with a passion for flying, has disguised herself as a boy to join the British Air Service. With war looming, the two should be enemies, but when their paths cross, they might decide to become heroes together.