Titles marked by user Dragoondelight with tag underworld civilization
| Date | Type | Language | Title | Authors | Parent Title | Parent Authors | Tags |
|---|---|---|---|---|---|---|---|
| 1934-04-21 | SHORTFICTION | English | Revolt of the Stone Men | uncredited | Disintegrator (1), telepathy (1), underworld civilization (1) | ||
| 1929-10-00 | SHORTFICTION | English | The Metal World | Ed Earl Repp | earth borer (1), underworld civilization (1), disintegrating rays (1), inner earth viewer (1) |