There are 2 books in the Wings of Fire series. The newest book is Dragonslayer which came out in 2020.

In the SeaWing kingdom, a young prince learns he is an animus-capable of wonderful magic that comes with a terrible price. In the mind of a NightWing dragonet, a thousand futures unfold-and almost all of them, she knows, lead to disaster and destruction. And under three full moons and the…
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2
Dragonslayer

Book cover of Dragonslayer
This special edition of the #1 New York Times bestselling Wings of Fire series soars back in time to give readers a glimpse of Pyrrhia through new eyes.

In the shadow of wings . . . humans fight for survival. Ivy doesn't trust the Dragonslayer. He may be her father…