The Fall

The fall is the third book of the series. It takes place in the year 2714, mostly on Tark

Summary
Saturn has fallen into the hands of the Cold Gasan, but Alex and Lorraine are lost at the other end of the Red Fields. The end of the war is near as the Red Light hides somewhere, too weak to fight back. But the Liberators uncover something far worst than the Red Light hiding in the shadows, something that could lead them to their fall.