The Genesis Debt: Book Two of the Genesis Project — Barry E. Woodham

The Genesis Debt is a sequel to Genesis 2. Long after the sun has entered its red giant stage, the human race is recreated by nannite Guardians on a Jupiter that has had its great gas mantle stripped away. Instead of a gas giant the nannite crew find a seeded world teaming with life on a super continent that stretches from pole to pole. Several years after the defeat of the Tyrant, Ender-whann-soo's Brood-mother daughters devise a way to reach out to the people of Earth, six million years into the past. In doing so, the riddle of the Gnathe's existence on this world will at last be explained and the possibility of saving the human and ape civilisation from the expanding sun becomes a reality.

The blood debt of the Gnathe will be paid in full or Link-soo-shan's revenge will destroy them all.