Fireblood  (English, Paperback, Stewart Sam)

Dragons don't exist. But they used to... Discovering the magic of dragons flows through your veins is frightening - and liberating! But with the powers of Dragonkind comes a desperate quest: siblings Finn and Tula must travel to a hidden island fortress to help save their father - and the world they know; and discover the truth about their incredible Fireblood heritage.