First printing, number line. Previously released in serial form in Analog. Tight, clean, flat, square, sharp book. Creased spine. Marginal toning.  Winner HOMer Award for best novel, Aurora Award best long form English language, honorable mention 1997 Hugo, Nominatee best novel Nebula and SF Chronicle. 

Twenty years after the discovery of artificial wormholes launches Earth space exploration to unforeseeable heights, Starplex Director Keith Lansing investigates a mysterious vessel that soon threatens the station with intergalactic war. The giant exploration starship Starplex - crewed by humans, dolphins, and extraterrestrials - embarks on a journey covering billions of years of time and millions of light-years of space.