| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1976 | 978-0-905903-00-2 | Pierre Chevalier | Subterranean Climbers |
| '' | 978-0-905903-01-9 | Pierre Chevalier | Subterranean Climbers |
| '' | 978-0-905903-02-6 | Norbert Casteret | Ten Years Under the Earth |
| '' | 978-0-905903-03-3 | '' | Ten Years Under the Earth |
| 1991 | 978-0-905903-29-3 | Jo Clay | Magic of Miniatures |