The Unexplained: Alien Encounters
Peter Hepplewhite and Neil Tonge
1998

War of the Worlds
H.G. Wells [adapted by Mary Ann Evans]
1998

102 Alien Jokes
Morgan Matthews
1999

Abductions & Aliens
Chris Rutkowski
1999

Alien Abductions
Martin H. Greenberg & John Helfers, eds.
1999

Alien Investigator
Tony Dodd
1999

The Alien Years
Robert Silverberg
1999

Michigan Chillers #4: Aliens Attack Alpena
Johnathan Rand
1999

Apocalypse Pretty Soon
Alex Heard
1999

The Apocalypse Troll
David Weber
1999

Area 51: The Mission
Robert Doherty
1999

CE - 5
Richard F. Haines, Ph.D.
1999

CE-VI: Close Encounters of the Possession Kind
William Baldwin, Ph.D.
1999

Club Earth
Gail Gauthier
1999

Complete Idiot's Guide To Extraterrestrial Intelligence
Michael Kurland
1999

The Cosmic Matrix, Piece for a Jig Saw Part 2
Leonard G. Cramp
1999

The Custodians
Dolores Canon
1999

Earthlings Inside and Out
Valerie Wyatt and Dusan Petricic
1999

Eyewitness Readers - Invaders from Outer Space
Philip Brooks
1999

Flying Saucer!
Linda Lott
1999

I Was a Sixth Grade Alien
Bruce Coville
1999

Independence Day: War in the Desert
Stephen Molstad
1999

JoJo In Outer Space (Book #23)
Margaret Allen, Ph.D.
1999

The Life-Sized Pop-Up Alien Book
David Hawcock
1999

The Little Green Man Visits Pine Cone Cove (Book #15)
Margaret Allen, Ph.D.
1999

Maury Island UFO: The Crisman Conspiracy
Kenn Thomas
1999

Nose Pickers from Outer Space
Gordon Korman
1999

Oxford Bookworms Factfiles #2: U.F.O.s
Helen Brooke
1999

Richard Thompson
1999

Project 1947: UFO/Radar Cases Catalogue
Dominique Weinstein & Jan Aldrich
1999

The Rising of the Moon
Jonathan Downes & Nigel Wright
1999

Roswell High #1, [The Outsider]
Melinda Metz
1999

Saucer Wisdom
Rudy Rucker
1999

Scientific Ufology
Kevin D. Randle
1999

Sekretnye dosye FBR "Secret FBI Files"
Nicholas Redfern
1999

Summoned, Encounters with Alien Intelligence
Dana Redfield
1999