The Far Shore of Time - Pohl, Frederik, IV

Returning to Earth, it's up to Dannerman--all three of him--to unravel the ins and outs of the alien technology in time to stave off the imminent destruction of the planet.

The Far Shore of Time 2000, Tor Books, New York

ISBN-13: 9780812577839

Mass-market paperback

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The Far Shore of Time 1999, Tor Books, New York, NY

ISBN-13: 9780312866181

Hardcover

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