Earth's sun cannot supernova-and yet it did. For twenty-one years, scientists have wondered why. Now, entering a new sector of the galaxy, the Space Star Silver Streak encounters an alien race known as the Valdor-belligerent, crab-like beings who reveal the astonishing information that the supernova was no natural phenomenon-but was deliberately induced by mysterious creatures known as the Thermians! Faced with the possibility of abandoning the long mission to settle colonies on other planets, Captain Richard Cameron must redirect the Silver Streak's future. In the midst of establishing the first space-based colony, Station Post One, Cameron suddenly faces a new and more personal menace in the form of his arch enemy, the Hyron commander Mordrax. The Thermians' latest target is Hyron, and if the Hyrons are destroyed, so will Cameron's young daughter Keilah. If the Thermians think Richard Cameron is going to take this lying down, they are sorely mistaken!