My physical copy
- Notes
- Ace Science Fiction Special; alternate universes and identity
- Date added
- Nov 19, 2025
- Last enriched
- Jun 22, 2026
Edition details
- Title
- The Two-Timers
- Contributors
- Bob Shaw
- Publisher
- Ace Books
- Publication date
- 1968
- Pages
- 191
- Cover artist
- Diane Dillon, Leo Dillon
- Publication series
- Ace SF Special, Series 1
- Series number
- H-79
- Source
- ISFDB record