Castaway, by Conrad Knopf (1986) (3 ratings)
Time Traveller, by Conrad Knopf (1989) (1 rating)
Nebula, by Conrad Knopf (1986) (2 ratings)
The Asian Challenge, by Conrad Knopf (1989) (1 rating)
Raiders of the Star Temple, by Conrad Knopf (1989) (1 rating)
Red Planet, by Conrad Knopf (1989) (1 rating)
South America Trek, by Conrad Knopf (1986) (3 ratings)
Special Agent, by Conrad Knopf (1989) (1 rating)
Dark Continent, by Conrad Knopf (1986) (3 ratings)
Avenger of Rubicon, by Conrad Knopf (1990)
Sanctuary, by Conrad Knopf (1989)