Duel with Colossus: The Golden Amazon Saga, Book Seventeen

From outside the universe comes a terrifying threat. A colossal spaceship materializes in the void, crewed by master scientists who have only one the total destruction of the Earthly universe which, to them, is but a molecule in their macrocosm. But the invaders have reckoned without the intervention of the Cosmic Crusaders—the Golden Amazon, Abna, Viona and Mexone—who pit their strength and scientific ingenuity against Lixom, the leader of the invaders—a duel with Colossus. But it seems to be a duel that the Crusaders must lose when, separated from their mighty spaceship, the Ultra, they are projected by Lixom thousands of years into the past, to materialize—completely unprotected—in the deadly vacuum of outer space!