Hans Rebka, interstellar trouble-shooter, had solved the mystery of the gigantic Artefacts built by a race that vanished millions of years ago, and at the same time had defeated the warlike Zardalu, onetime tyrannical rulers of the galaxy. But that was only a warm-up for the main event. In one arm of the galaxy, something is destroying whole stellar systems. Investigating the wave of stellar destruction, Rebka and his motley crew of humans and aliens discover a battle beginning that may determine the ultimate fate of the galaxy itself. Rebka and company must act quickly. Unfortunately, they are trapped on a planet directly in the path of destruction...