Titles by Robert Leeson marked with tag: young-adult sf
- 1993 - Phase 3: Deadline
- 1993 - Phase 4: Danger Trail
- 1993 - Phase 5: Hide and Seek
- 1993 - Phase 6: Blast Off!
- 1991 - Fire on the Cloud
- 1991 - Landing in Cloud Valley
- 1987 - Slambash Wangs of a Compo Gormer
- 1986 - At War with Tomorrow
- 1986 - The Metro Gangs Attack
- 1986 - Three Against the World
- 1986 - Time Rope