Synopsis: From the back cover of the Roc first edition: "The interplanetary war - The Five Worlds of humanity were powerless to stop Prime Cornelian, High Leader of Mars, from decimating Venus with his legions of plasma soldiers. Now he turns to the settled moon of Saturn under the control of Wrath-Pei. Millions of lives face a horrible fate as the forces of these two madmen battle each other across the vastness of space... The exiled king - Imprisoned on the remote and savage ice world of Pluto, Dalin Shar's destiny lies on the usurped throne of Earth. But the methane atmosphere whipped by violent storms and prowled by mutant beasts makes escape nearly impossible. Yet escape he must - with the Five Worlds teetering on the brink of oblivion, the solar system had never been in greater need of heroes..."