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 Derynабыйэ 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, arouавпыхnd-the-world adventure that will change both their lives forever.