Expanded from "Spawn of the Deadly Sea" (1957).
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1965 |
|
Conquerors from the Darkness | Holt, Rinehart and Winston | Novel | |
| 1965 |
|
Conquerors from the Darkness | Holt, Rinehart and Winston | Novel | |
| 1965 | Conquerors from the Darkness | Holt, Rinehart and Winston | Novel | ||
| 1965 | Conquerors from the Darkness | Holt, Rinehart and Winston | Novel | ||
| September 1968 |
|
Conquerors from the Darkness | Dell | Novel | 7 |
| September 1968 |
|
Conquerors from the Darkness | Dell | Novel | 7 |
| September 1969 |
|
Conquerors from the Darkness | Dell | Novel | 7 |
| July 1979 |
|
Conquerors from the Darkness / Master of Life and Death | Ace Books | Omnibus | 1 |
| July 1986 |
|
Conquerors from the Darkness | Tor | Novel | 1 |
| September 2011 |
|
Conquerors from the Darkness | Gateway / Orion | Novel | |
| November 2017 |
|
Conquerors from the Darkness | ReAnimus Press | Novel | |
| November 2017 |
|
Conquerors from the Darkness | ReAnimus Press | Novel |