Behemoth (Leviathan #2)
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.
nyt:series_books=2011-09-17, New York Times bestseller, War stories, Princes, Juvenile fiction
Scott Westerfeld