Wings of fire : legends. [Book 2], Dragonslayer
(Book)

"Ivy doesn't trust the Dragonslayer. He may be her father and the beloved ruler of Valor, but she knows he's hiding more than the treasure from the sand dragon he killed two decades ago. Leaf doesn't trust dragons. They're the reason his favorite sister, Wren, is dead, and now he'll do whatever it takes to slay even one. Wren doesn't trust anyone. She swore off humans after her village tried to sacrifice her to the dragons. She only has one friend, a small, wonderful mountain dragon named Sky, and they don't need anyone else. In a world of dragons, the humans who scramble around underfoot are easy to overlook. But Ivy, Leaf, and Wren will each cross paths with dragons in ways that could shape the destiny of both species. Is a new future possible for all of them...one in which humans can look to the skies with hope instead of fear?" -- Dust jacket flap.