Die innerste Sphäre: Wächter des Schattenlands 1
2014
Fractured: Guards of the Shadowlands, Book 2 (Unabridged)
2013
In Search of Deeper Learning : The Quest to Remake the American High School
2019
The Warrior: The Immortal Dealers, Book 3 (Unabridged)
2019
The Guardian: The Immortal Dealers, Book 2 (Unabridged)
2018
The Serpent: The Immortal Dealers, Book 1 (Unabridged)
2018