Anthology of seven stories:
- Norman Spinrad, "Subjectivity"
- Dean McLaughlin, "The Permanent Implosion"
- Winston P. Sanders, "Sunjammer"
- R. A. J. Phillips, "A Day in the Life of Kelvin Throop"
- Mack Reynolds, "Genius Traitor"
- Randall Garrett, "A Case of Identity"
- Frank Herbert, "The Mary Celeste Move"