2) The Peacekeepers by Gene DeWeese (September 1988)
7) Masks by John Vornholt (July 1989)
9) A Call to Darkness by Michael Jan Friedman (November 1989)
11) Gulliver's Fugitives by Keith Sharee (May 1990)
12) Doomsday World by Carmen Carter, Peter David, Michael Jan Friedman, and Robert Greenberger (July 1990)
13) The Eyes of the Beholders by A. C. Crispin (September 1990)
14) Exiles by Howard Weinstein (November 1990)
15) Fortune's Light by Michael Jan Friedman (January 1991)
16) Contamination by John Vornholt (March 1991)
17) Boogeymen by Mel Gilden (July 1991)
19) Perchance to Dream by Howard Weinstein (December 1991)
20) Spartacus by T. L. Mancour (February 1992)
24) Nightshade by Laurell K. Hamilton (December 1992)
25) Grounded by David Bischoff (March 1993)
36) Into the Nebula by Gene DeWeese (July 1995)
40) Possession by J. M. Dillard and Kathleen O'Malley (May 1996)
52) Vectors (Double Helix, Book 2) by Dean Wesley Smith and Kristine Kathryn Rusch