Leviathan

Prince Aleksander, would-be heir to the Austro-Hungarian throne, is on the run. His own people have turned on him. His title is worthless.

All he has is a battletorn war machine and a loyal crew of men. Deryn Sharp is a commoner, disguised as a boy in the British Air Service. She's a brilliant airman.

But her secret is in constant danger of being discovered. With World War I Prince Aleksander, would-be heir to the Austro-Hungarian throne, is on the run. His own people have turned on him.

His title is worthless. All he has is a battletorn war machine and a loyal crew of men. Deryn Sharp is a commoner, disguised as a boy in the British Air Service.

She's a brilliant airman. But her secret is in constant danger of being discovered. With World War I brewing, Alek and Deryn's paths cross in the most unexpected way-taking them on a fantastical, around-the-world adventure that will change both their lives forever.