A blackmailer demonstrates his ability to send an entire city back to prehistoric times.
Michael Main
We received a note telling us that unless we paid the sum of three million dollars this great city would be taken back to prehistoric days.

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Variants

(1)
  1. “Time Reversal” by an unknown writer, Journey into Mystery #8 (Atlas Comics, May 1953).
  2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . written by unknown persons