an Entity references as follows:
The Mirror of Fate is a 1999 fantasy novel by T. A. Barron published by Penguin. The Mirror of Fate is the fourth book in a 12-book series known as The Merlin Saga. This book was originally published as The Mirror of Merlin, book four of The Lost Years of Merlin epic, a 5-book series providing a childhood story for the legendary Merlin, wizard of Arthurian legend. In a remote swamp on the magical isle of Fincayra, uncommon wickedness arises. Young Merlin must journey to terrifying places - both within himself as well as on land - to save both his homeland, and his own destiny.