The Pyramids and the Pentagon: The Government's Top Secret Pursuit of Mystical Relics, Ancient Astronauts, and Lost Civilizations (Unabridged)
2013
Keep Out!: Top Secret Places Governments Don't Want You to Know About (Unabridged)
2013
Bloodline of the Gods : Unravel the Mystery in the Human Blood Type to Reveal the Aliens Among Us
2016
How Antigravity Built the Pyramids: The Mysterious Technology of Ancient Superstructures
2022
Men in Black: Personal Stories and Eerie Adventures (Unabridged)
2016
The Bigfoot Book: The Encyclopedia of Sasquatch, Yeti, and Cryptid Primates (The Real Unexplained! Collection)
2026