Merlin

1 The Lost Years (1996)
     aka The Lost Years of Merlin
2 The Seven Songs (1997)
     aka The Seven Songs of Merlin
3 The Raging Fires (1998)
     aka The Fires of Merlin
4 The Mirror of Fate (1999)
     aka The Mirror of Merlin
5 A Wizard's Wings (2000)
     aka The Wings of Merlin
6 The Dragon of Avalon (2008)
     aka Merlin's Dragon
7 Doomraga's Revenge (2009)
8 Ultimate Magic (2010)
9 The Great Tree of Avalon (2004)
     aka Child of the Dark Prophecy
10 Shadows on the Stars (2005)
11 The Eternal Flame (2006)
12 The Book of Magic (2011)

The Wisdom of Merlin (2015)

T.A. Barron Set (2004)