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Ringworld Throne (original 1996; edition 1997)
by Larry Niven
References to this work on external resources.
Wikipedia in English (1)
Amazon.com Amazon.com Review (ISBN 0345412966, Mass Market Paperback)In Ringworld and Ringworld Engineers Larry Niven created Known Space, a universe in the distant future with a distinctive and complicated history. The center of this universe is Ringworld, an expansive hoop-shaped relic 1 million miles across and 600 million miles in circumference that is home to some 30 trillion diverse inhabitants. As in his past novels, Niven's characters in The Ringworld Throne spend their time unraveling the complex problems posed by their society.
(retrieved from Amazon Mon, 30 Sep 2013 13:27:33 -0400)
In the twenty-ninth century, Louis Wu, a 200-years-young adventurer, became one of the first humans from Known Space to set foot on the Ringworld, and his exploits there became legends among many of the native races. During Louis Wu's second sojourn on the Ringworld, he was able to save it from total destruction... but several hundred million people died anyway, and that was a mighty weight on one man's conscience. But odd events on the Ringworld would require Louis Wu's attention once again: Vampires were gathering in untold numbers; Protectors, immensely powerful beings dedicated to safeguarding their own bloodlines above all else, were interfering with species not their own and with each other. If the Ringworld was to remain intact, it was going to need one central Protector of its own. But who would sit on the Ringworld Throne?...
(summary from another edition)
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