Sentan

Mankind has been saved from disaster by his own ancestors. The Sentans were removed from Earth when they were still Homo erectus 400,000 earlier by a super intellegence. The galactic anthropologists who do this recognise mankind's potential and decide to "e;spread the risk"e; Years later these distant cousins themselves rescue mankind from geological disaster. As Earth destroys itself a fleet of vessels arrive to remove orphans and scientists to a strange yet beautiful world. As millennia pass, these survivors integrate and adapt their hosts culture with surprising consequences. When they themselves prepare to return to Earth they have become alien. Those left behind on earth survive only to return to a New Stone Age. A flood basalt event and continious climatic upheaval ensures that the remnants of life on Earth struggles to stay alive. The book follows the lives of both the Sentans and those of the humans left behind, their loves, their fears and their struggles with unimaginable challanges.