Black Fire (Star Trek)

SPOCK A TRAITOR? There is sabotage aboard the Enterprise and Spocks investigation leads him into defiance of the Federation and a bizarre alliance with the Romulan and Klingon Empires against the bloodthirsty Tomarii -- a savage race for whom war and battle are life itself. Now Spock has been declared a traitor and condemned to the shame of the Federations highest security prison. And now Captain James Kirk must face the toughest decision of his command while a lifelong friendship and the destiny of the free universe hang in the balance!