With the Earth destroyed by a supernova, the Space Star Silver Streak moves outward into the heaveans, a self-sustaining starship housing thousands, settling colonies on other planets . . . moving outward into the deepest, unknown reaches of space . . .

The final volume of the epic space saga features twelve more stories in which Captain Richard Cameron and Frank Johnson encounter more friends and enemies, wonders and dangers in the infinite universe. In this volume, Jack Hasta is accused of shipping illegal drugs to one of the Silver Streak's colonies, powerful aliens trap Captain Cameron and his old enemy Mordrax in a parallel universe, Jack Hasta wins a "dream date" with a hideous old hag with a startling secret, and Cameron disappears into a mysterious region of space where people and spacecraft vanish without a trace. These are only a few of the spellbinding adventures in this last collection of amazing Voyage Into the Unknown stories!