Orion: Orion Series, Book 1 (Unabridged)
2010
Gateways: Original New Stories Inspired by Frederik Pohl (Unabridged)
2025
Orion and King Arthur (Unabridged)
2011
Vengeance of Orion: Orion Series, Book 2 (Unabridged)
2010
The Science Fiction Hall of Fame, Vol. 2-B: The Greatest Science Fiction Novellas of All Time Chosen by the Members of the Science Fiction Writers of America (The Science Fiction Hall of Fame Series)
2018
Orion in the Dying Time: Orion Series, Book 3 (Unabridged)
2010