Once giants descended from heaven in their strange machines
This is perhaps the normal process of a civilization: evolving towards its destruction.
How the humazn species survives a hundred thousand years nuclear winter
When a thick ice sheet covered the half of Europe, Asia and North America
A deadly winter is about to descend on the material world, and it will bring a killing frost.
Who dug these underground cities and what for?
Is it peace that has allowed our species to survive? Is it war that allowed us to grow and prosper?