 How did Crownwall get to Vega III so quickly?
It had been manned by a dozen adventurous people, captained by Crownwall, and had headed out on its ion drive until it was safely clear of the warping influence of planetary masses. They had headed for that planet confidently and unsuspectingly, using the ion drive. Although far within the dangerous influence of a planetary mass, they had again activated the distorter drive, and they had beaten the odds. Even if you could get down to the bottom of the ocean and tamper with the bomb, you would only succeed in setting it off, and that's what the Sunda had been in favor of in the first place.
 Time travel
 FTL (Faster than Light) drive  Transport Beam  Warp drive  Time travel