In the future there is a world where evolution takes hold and creates creatures of myth and legend. There are nine races who departed from the world thousands of years ago. Giants, shifters, fairies, tree folk and more are scouring the worlds and looking for species with the same potential that theirs once held. This search leads them back to their old world, Underhill, and it now has new occupants... and they are under attack.

Human settlers are the newest people on the colony planet they call Gaia and three generations in they are changing...