The Entropy Effect Science Fiction Paperback Book Vonda N. McIntyre 1981
(Star Trek: The Original Series #2)

The Starship Enterprise is summoned to transport a dangerous criminal to rehabilitation: the brilliant physicist, Dr. Georges Mordreaux, who is accused of promising to send people back in time, then killing them instead. 

But when a crazed Mordreaux escapes, he inexplicably bursts onto the bridge and murders Captain Kirk before the crew's eyes.

Now Spock must journey back in time to avert the disaster "before" it occurs. 

But more is at stake than Kirk's life. Mordreaux's experiments have thrown the universe into chaos, and Spock is fighting time itself to keep the very fabric of reality from unraveling.

Book is in acceptable condition. General shelf and corner wear. Some white marks on the front and back cover. Some fraying along the cover edges. The spine has some issues (see photo #3). Scraping on back cover. Staining on front and back cover. A solid reading copy. Please see photos for details, and let me know if you have any questions.

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