Star Trek - Shadows on the Sun
As a young doctor with a beautiful family and a promising medical career, Dr. McCoy thought he had it all. But when the woman he loved betrayed him, McCoy fled to Starfleet hoping to lose his pain in the depths of space. Now, more than forty years later, the USS Enterprise and her crew are ordered to transport a group of mediators to the planet Ssan, a world where assassination is a long and time honored tradition.

Dr. McCoy is surprised to learn that his ex-wife, now remarried, is one of the mediators. But before McCoy can begin to face his feelings for his former love, she and Captain Kirk are trapped by a band of deadly assassins. Suddenly, McCoy is in the center of an explosive civil war, where he is the only one with the power to save the woman who once nearly destroyed him. McCoy must now overcome a centuries long tradition of death, and his own past with the woman he still loves, or else lose her for the second time...
Fiction, Space ships, Interplanetary voyages, Leonard McCoy (Fictitious character), collectionID:STorig
Michael Jan Friedman
Michael Jan Friedman (born March 7, 1955) is a New York City born American author of nearly sixty books of fiction and nonfiction, more than half of which are in licensed tie-in products of the Star Trek franchise. Ten of his titles have appeared on the New York Times Best Seller list. Friedman has also written for network and cable television, radio, more than 150 comic books, most of them for DC Comics.