Untethered sky

With her family shattered after a manticore attack killed her baby brother and mother, Ester is left with her father, who has fallen painfully silent, and her need for vengeance against the monsters that did it. In the king's Royal Mews, the giant rocs of legend are trained to fly and hunt manticores with their handlers--Ester gets paired with a fledgling, Zahra, and starts to find her purpose while training for the empire's most dangerous manticore hunt in history.