Robots on the planetoid Pallas decide to revolt against human domination, but their plot to defeat the first human force sent against them fails when they overlook one obvious fact.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| July 1950 |
|
Out of this World Adventures, July 1950 | Avon Periodicals | MAGAZINE | 70 |
| November 1950 |
|
Out of This World Adventures, November 1950 | American News Co. | MAGAZINE | 70 |
| March 1973 |
|
Perry Rhodan #22: The Fleet of the Springers | Ace Books | MAGAZINE | 117 |
| April 1997 |
|
Ackermanthology: 65 Astonishing, Rediscovered Sci-Fi Shorts | General Publishing Group | Anthology | 103 |
| September 2000 |
|
Ackermanthology: 65 Astonishing Rediscovered Sci-Fi Shorts, Millennium Edition | Sense of Wonder Press | Anthology | 103 |
| December 2008 |
|
Out of this World Adventures, July 1950 | Altus Press | Anthology | 68 |