Read Beyond the Gate of Worlds Storyline:
Here are three short novels from three masters of science fiction--all set in the universe of one of Silverberg's most successful novels, Gate of Worlds. Imagine an alternate Earth where the Black Plague killed not 30 percent of Europe's population, but 80 percent, leaving it prey to the incursions of the Moslems; and where the New World was spared the ravages of the Europeans.Pages of Beyond the Gate of Worlds :
