1. The Black Tower (1988) by Richard A Lupoff
2. The Dark Abyss (1989) by Bruce Coville
3. The Valley of Thunder (1989) by Charles de Lint
4. The Lake of Fire (1989) by Robin Wayne Bailey
5. The Hidden City (1990) by Charles de Lint
6. The Final Battle (1990) by Richard A Lupoff
The Dungeon 2 (omnibus) (2003) by Robin Wayne Bailey, Charles de Lint and Philip José Farmer