The Fires of Merlin
Here is how the publisher describes this book on the jacket cover:
Wings of Fire, the sleeping dragon, has awakened, threatening to loose
his terrible wrath on all of Fincayra. Only young Merlin, whose magical
powers are new and untested, can stop him—though the price may well be
the young wizard's life.
But before he can face the dragon's fires, Merlin must face other
fires, including those within himself. He must confront the dreaded
kreelixes, who exist only to destroy magic; the mysterious Wheel of
Wye; and the sorceress Domnu, who holds the treasured Galator. Most
challenging, young Merlin must discover the power—as well as the
source—of his own magic.
T.A. Barron's spellbinding third book in The Lost Years of Merlin epic, rich in passion and spiritual depth, adds a dramatic and bold new dimension to the legend of Merlin.
Hardback ISBN: 0-399-23020-3
Paperback ISBN: 0-441-00713-9