Through The Dragon's Eye(1989)

Part of the BBC's educational "Look and Read" series, Through The Dragon's Eye tells the story of three children transported to the land of Pelamar by Gorwen the Dragon in order to repair the Veetacore: the "life source" of Pelamar. The children must race to find the missing pieces of the Veetacore and repair it before all life in Pelamar ceases to exist.