Estes, Sally. Review of The Lost Years of Merlin Series. Booklist 96 (April 15, 2000): 1544. Briefly summarizes each published book of the series. Commends the series for growing "steadily richer in background and characterization," and describes it as full of surprises and action adventure.

Review of The Lost Years of Merlin. Publishers Weekly 243 (August 12, 1996): 84.

Ambivalent review emphasizing the Welsh mythic sources for the novel. Compares it to Lloyd Alexander's Prydain Chronicles, and questions the logic of the story's ending.