- Auth/Ed: Jack O'Sullivan
- Year: 1951
- Price: $0.25
- Pages: 112
- Cover: Allen Anderson
- Notes: $0.25
| Novellas | |
| The Incubi of Parallel X | Theodore Sturgeon |
| Novelettes | |
| Lord of a Thousand Suns | Poul Anderson |
| Short Stories | |
| The Watchers | Roger Dee |
| Vengeance on Mars | [as D. B. Lewis] Jerome Bixby |
| Tydore's Gift | Alfred Coppel |
| The Star Fool | Gordon R. Dickson |
| Sanctuary, Oh Ulla! | [as J. T. M'Intosh] J. T. McIntosh |
| Last Night Out | [as Lee Gregor] Milton A. Rothman |
| The Inhabited Men | Margaret St. Clair |
| Hospitality | J. W. Groves |