The Ancient Return of the Apocalypse

It turns out that the ancient civilization on earth really existed, but was destroyed by unknown alien creatures. Now alien creatures have descended on the earth again, and the earth has entered the ancient times overnight. Ferocious beasts are raging, and hundreds of tribes are vying for supremacy. In the early days of humankind, we could only live in a corner and live in an ignoble existence. Can such a human being survive? What kind of difficulties and obstacles will you encounter on the road to survival? Everything will come again before the end of time! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.