J.J. Gregory
Follow to get improved recommendations.
Books by J.J. Gregory
Alien Ambassador... How It All Began
$14.99
Aliens Killed the Dinosaurs
$16.52
A Gamma-Ray Burst Hits Earth (What If)
$14.99
Archangel Justice
$17.05
A Vampire's Cure for a Werewolf
$14.99
Aliens Built the Pyramids
$14.99
Moon Secrets
$16.68
Jacob's Death
$16.82
Airborne Pyramids
Out of Stock
Preserving the Faith (Faith Preservation Society)
$17.95 - $33.95
Aliens Exterminated the Neanderthals
$16.52
A Gamma-Ray Burst Hits Earth Trump Version: The What If Series
$16.52
Copyright © 2026 Thriftbooks.com Terms of Use
| Privacy Policy | Do Not
Sell/Share My Personal Information | Cookie Policy | Cookie Preferences | Accessibility Statement
ThriftBooks® and the ThriftBooks® logo are registered trademarks of Thrift Books Global, LLC
ThriftBooks® and the ThriftBooks® logo are registered trademarks of Thrift Books Global, LLC
