Behemoth (Leviathan Series #2)

The latest in the New York Times bestselling breakout steampunk series from Scott Westerfeld.

At the end of Leviathan, our heroes Alek and Deryn were aboard a mighty air ship heading toward Constantinople to deliver a secret package. But their secrets-Alek's family is responsible for starting World War I, and Deryn is a girl passing as a guy in the British Air Service-are in jeopardy when their mission goes awry. The only way to save themselves in a hostile, politically charged city is to...