The Challenge
| First published | October 1950 |
|---|---|
| Type | Short Fiction |
| Length | Short Story |
Publications (2)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| October 1950 | Thrilling Wonder Stories, October 1950 | Standard Magazines, Inc. | MAGAZINE | 69 |
| 1958 | The Void Beyond and Other Stories / The Blue Atom | Ace Books | Omnibus | 69 |