Dimensions: A Casebook of Alien Contact (Unabridged)
2026
Confrontations: A Scientist's Search for Alien Contact (Alien Contact Trilogy, Book 2) (Unabridged)
2026
Searching for the String: Selected Writings of John A. Keel (Unabridged)
2015
The Eighth Tower: On Ultraterrestrials and the Superspectrum (Unabridged)
2019
Our Haunted Planet (Unabridged)
2015
Operation Trojan Horse: The Classic Breakthrough Study of UFOs (Unabridged)
2018