Rainbow City, under the Antarctica ice cape, is supposed to be the place where the human elites serve their alien overlords.
I'm not making this up, and it is NOT my kooky theory, BTW! LOL!
No, not the Jules Verne story, I’m talking about this one which comes up often enough among UFO aficionados.
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Good grief!
I think most likely they are conspiring their escape when they see no way out of it.
Problem is you just cant go there and verify everything just read what happened to Admiral byrd after WWII who tried it.
https://www.youtube.com/watch?v=o6TbWvbRpNI