Aliette's Reviews > Updraft

Set in a world where towers of bone endlessly towards the heavens and traders fly on homemade wings to get vital commodities between families, and skymouths devour the unwary. Kirit dreams of being a trader like her mother, but when she finds out she has a special ability to repel skymouths, she finds herself drawn into the intrigues and secrets of the Singers' Spire, those who keep order between the towers...

Superlative world building, a very sympathetic main character (and her family, which is awesome!), and seriously impressive flight engineering (now I want wings too!).