Timekeeper

Not sure if this is the right fit?

Consider Behemoth by Scott Westerfeld.

“Behemoth reads like a rollicking steampunk war adventure: airships, a gargantuan naval monster, and two young protagonists hiding high-stakes identities. It's strongest as a plot-driven, movie-ready ride for readers who want inventive alternate-history action and YA-suitable stakes. Its limitation: brisk motion sometimes flattens emotional nuance and long sequences of techno-warfare or battle set pieces can feel repetitive; readers seeking slow character psychology or literary subtlety will find it thin. Best enjoyed when you want fast thrills, not deep introspection.”