42 titles There's Adventure in Electronics (Chicago, Illinois: Popular Mechanics Press, 1957 ) [nonfiction: hb/Frank C Murphy]
There's Adventure in Chemistry (Chicago, Illinois: Popular Mechanics Press, 1957 ) [nonfiction: hb/Frank C Murphy]
There's Adventure in Atomic Energy (Chicago, Illinois: Popular Mechanics Press, 1957 ) [nonfiction: hb/Frank C Murphy]
There's Adventure in Rockets (Chicago, Illinois: Popular Mechanics Press, 1958 ) [nonfiction: hb/Frank C Murphy]
Frankenstein (Mankato, Minnesota: Crestwood House, 1977 ) [chap: tie to the film: hb/]
A Gazeteer of the Hyborian World of Conan (Fax Collector's Editions, 1977 ) [nonfiction: Robert E Howard : hb/]
Godzilla (Mankato, Minnesota: Crestwood House, 1977 ) [nonfiction: chap: tie to the film: hb/]
Dracula (Mankato, Minnesota: Crestwood House, 1977 ) [chap: tie to the film: hb/]
King Kong (Mankato, Minnesota: Creative Educational Society, 1977 ) [nonfiction: chap: hb/]
Mad Scientists (Mankato, Minnesota: Crestwood House, 1977 ) [nonfiction: chap: tie to the film: hb/]
The Wolf Man (Mankato, Minnesota: Crestwood House, 1977 ) [chap: tie to the film: hb/]
The Many-Colored Land (Boston, Massachusetts: Houghton Mifflin Company, 1981 ) [Galactic Milieu: Saga of Pliocene Exile : hb/Ken Barr ]
The Mummy (Mankato, Minnesota: Crestwood House, 1981 ) [chap: tie to the film: hb/]
Frankenstein Meets Wolfman: Adapted from the Screenplay "Frankenstein Meets the Wolfman" by Curt Siodmak (Mankato, Minnesota: Crestwood House, 1981 ) with Howard Schroeder and Curt Siodmak [tie to the film: pb/]
The Golden Torc (Boston, Massachusetts: Houghton Mifflin Company, 1982 ) [Galactic Milieu: Saga of Pliocene Exile : hb/Steve Fabian ]
The Many-Colored Land & The Golden Torc (Garden City, New York: Nelson Doubleday, 1982 ) [omni of the above two: Galactic Milieu: Saga of Pliocene Exile : hb/Ron Dilg]
Creature from the Black Lagoon (Mankato, Minnesota: Crestwood House, 1982 ) [chap: tie to the film Creature from the Black Lagoon : hb/]
The Blob (Mankato, Minnesota: Crestwood House, 1982 ) [chap: tie to the film The Blob : hb/]
The Deadly Mantis (Mankato, Minnesota: Crestwood House, 1982 ) [chap: tie to the film The Deadly Mantis : hb/]
It Came from Outer Space (Mankato, Minnesota: Crestwood House, 1982 ) [chap: tie to the film It Came from Outer Space : hb/]
The Nonborn King (Boston, Massachusetts: Houghton Mifflin Company, 1983 ) [Galactic Milieu: Saga of Pliocene Exile : hb/Steve Fabian ]
The Adversary (Boston, Massachusetts: Houghton Mifflin Company, 1984 ) [Galactic Milieu: Saga of Pliocene Exile : hb/Steve Fabian ]
The Nonborn King & The Adversary (Garden City, New York: Nelson Doubleday, 1984 ) [omni of the above two: Galactic Milieu: Saga of Pliocene Exile : hb/Steve Fabian ]
The Pliocene Companion (Boston, Massachusetts: Houghton Mifflin Company, 1984 ) [nonfiction: Galactic Milieu: Saga of Pliocene Exile : hb/]
A Pliocene Companion: A Guide to the Saga of Pliocene Exile (New York: Ballantine Books/Del Rey, 1985 ) [nonfiction: vt of the above: Galactic Milieu: Saga of Pliocene Exile : pb/Michael Whelan ]
Intervention (Boston, Massachusetts: Houghton Mifflin Company, 1987 ) [Galactic Milieu : hb/Stephen Bradbury]
The Surveillance (New York: Ballantine Books/Del Rey, 1988 ) [cut vt containing the first half of the above: Galactic Milieu : pb/Michael Herring ]
Metaconcert (New York: Ballantine Books/Del Rey, 1989 ) [cut vt containing the second half of the above: Galactic Milieu : pb/Michael Herring ]
Black Trillium (New York: Doubleday Foundation, 1990 ) with Marion Zimmer Bradley and Andre Norton [Shared World : Trillium : hb/Mark Harrison]
Blood Trillium (New York: Bantam Spectra, 1992 ) [Shared World : Trillium : hb/Mark Harrison]
Jack the Bodiless (New York: Alfred A Knopf, 1992 ) [Galactic Milieu : hb/Stephen Bradbury]
Golden Trillium (New York: Bantam Spectra, 1993 ) by Andre Norton [Shared World : Trillium : hb/Mark Harrison]
Diamond Mask (New York: Alfred A Knopf, 1994 ) [Galactic Milieu : hb/Archie Ferguson]
Lady of the Trillium (New York: Bantam Spectra, 1995 ) by Marion Zimmer Bradley [Shared World : Trillium : hb/Mark Harrison]
Sky Trillium (New York: Ballantine Books/Del Rey, 1996 ) [Shared World : Trillium : pb/Mark Harrison]
Magnificat (New York: Alfred A Knopf, 1996 ) [Galactic Milieu : hb/Archie Ferguson]
Perseus Spur: An Adventure of the Rampart Worlds (London: HarperCollins/Voyager, 1998 ) [Rampart Worlds : hb/Stephen Bradbury]
Orion Arm: An Adventure of the Rampart Worlds (London: HarperCollins/Voyager, 1999 ) [Rampart Worlds : hb/Stephen Bradbury]
Sagittarius Whorl: An Adventure of the Rampart Worlds (New York: Ballantine Books/Del Rey, 2001 ) [Rampart Worlds : hb/Chris Moore ]
Conqueror's Moon (London: HarperCollins/Voyager, 2003 ) [Boreal Moon Tale : hb/Dominic Harman ]
Ironcrown Moon (London: HarperCollins/Voyager, 2004 ) [Boreal Moon Tale : hb/Dominic Harman ]
Sorcerer's Moon (New York: Ace Books, 2006 ) [Boreal Moon Tale : hb/Steve Stone ]