In the third book of the chronicles of Prydain, Princess Eilonwy is sent to the Isle of Mona for training where she is bewitched by the evil enchantress Achren, so Taran and other friends must try to rescue her.

Printed 2011 by R.R. Donnelley & Sons Company, Harrisonburg, Virginia. Cover art copyright 2006 by David Wyatt. Originally published: New York: Holt, Rinehart and Winston, 1966. "Square Fish and the Square Fish logo are trademarks of Macmillan and are used by Henry Holt and Company under license from Macmillan"--Title page verso. Includes sneak peek at Taran Wanderer, book 4 of The chronicles of Prydain.