Continues the story of Austrian Prince Alek who, in an alternate 1914 Europe, eludes the Germans by traveling in the Leviathan to Constantinople, where he faces a whole new kind of genetically-engineered warships.

In an alternate 1914 Europe, fifteen-year-old Austrian Prince Alek, on the run from the Clanker Powers who are attempting to take over the globe using mechanical machinery, forms an uneasy alliance with Deryn who, disguised as a boy to join the British Air Service, is learning to fly genetically-engineered beasts.

"Jacinda, a sixteen-year old who can shift into dragon form, surrenders herself to her greatest enemies in the hopes of destroying them and finally being free to choose a life with the human boy she loves"--

Seventeen-year-old Astrid Sullivan belongs to a family of compulsive gamblers, and now that her father has been laid off from his job in Detroit and lost all their money betting on the Titans, which are half-horse, half car, and race around impossible tracks, her family is falling apart--but when Astrid's new friends give her the chance to participate in this year's Titan races, she thinks she sees a way to win some money and keep her family together....