55 books • 4 series
Book #3: Dreamsong
Book #8: The Gathering
Book #11: Beasts
Book #13: Mirror of the Soul
Book #1: Die Wergelder 1
Book #3: Die Wergelder 3
Book #13: Blade of the Immortal
Book #1: Wave, Listen To Me! 1
Book #2: Wave, Listen To Me! 2
Book #3: Wave, Listen To Me! 3
Book #5: Wave, Listen to Me! 5
Book #6: Wave, Listen to Me! 6