Annihilation Factor
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 First edition | |
| Author | Barrington J. Bayley |
|---|---|
| Cover artist | Peter Lloyd |
| Language | English |
| Genre | Science fiction |
| Publisher | Ace Books |
Publication date | 1972 |
| Publication place | United States |
| Media type | Print (Paperback) |
| Pages | 134 |
Annihilation Factor is the second science fiction novel by Barrington J. Bayley, expanded from a 1964 short story ("The Patch") originally published in New Worlds. It centres on the strains placed on a galactic empire by the appearance of the mysterious, planet-devouring "patch".
