Alek and Deryn are on the last leg of their round-the-world quest to end World War I, reclaim Alek’s throne as prince of Austria, and finally fall in love. The first two objectives are complicated by the fact that their ship, the Leviathan, continues to detour farther away from the heart of the war (and crown). [...]

The behemoth is the fiercest creature in the British navy. It can swallow enemy battleships with one bite. The Darwinists will need it, now that they are at war with the Clanker powers.Deryn is a girl posing as a boy in the British Air Service, and Alek is the heir to an empire posing as [...]

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 [...]