 What was supposedly destroyed after the crash of the Vennox regime?
Moments later an official hydrocar roared up and a dozen I.P. men rushed out and scattered the crowd. She took my arm and led me around a corner and through a doorway under a sign that read THE JET. "Now in 2710, as you'd know if you studied your history, the three planets of Earth, Venus, and Mars were under governmental bondage. The cruel dictatorship of Vennox I was short-lived, but it lasted long enough to endanger all civilized life. "The archives tell us that one of the first acts of the overthrowing government was to cast out all Green Flames, two of which Vennox had ordered must be kept in each household. Green Flames were supposedly destroyed on all planets after the Vennox regime crashed.
 Green Flames
 The Varsoom district  Green Flames  Ezra Karn, an old prospector  Gamma rays