" But it wasn’t any of those reasons that had set her on this course, Deryn knew. Alek was here in the city and needed help. Perhaps it was daft to risk everything for some barking prince, a boy who didn't even know she was a girl. But it was no more daft than Alek walking across a glacier to assist a wounded enemy airship, was it? "

― Scott Westerfeld , Behemoth (Leviathan, #2)