What's a girl to do? She's been pretending to be a boy so she could serve on the Darwinist British Airship Leviathan. And poor Daryn is scrambling to keep her secret, but things keep getting in the way!  One, most notably, being the escaped prince of Austria-Hungary who is aboard and is struggling to keep his own secrets.

Between the two of them, well, mayhem ensues. Look out Istanbul, you're in their crosshairs.

Another great read from Scott Westerfeld!  4 1/2 out of 5 stars