Star Trek - Crossroad
Synopsis - The crew of the Nautilus a battered Star ship of mysterious origin, is beamed aboard the Starship Enterprise.  The group claims they are freedom fighters from the future working to save the Federation from the Consilium – a group of corrupt power seekers.  But when the Nautilus crew members suddenly seize control of the U.S.S. Enterprise, and a Star ship from the future arrives to arrest the renegades, Kirk must separate his true allies from those who wish to destroy the Federation.
Star trek (Television program), Fiction, collectionID:ST#, Kirk, james t. (fictitious character), fiction, Fiction, science fiction, space opera
Barbara Hambly
Barbara Hambly (born August 28, 1951) is an American novelist and screenwriter within the genres of fantasy, science fiction, mystery, and historical fiction. She has a bestselling mystery series featuring a free man of color, a musician and physician, in New Orleans in the antebellum years. She also wrote a novel about Mary Todd Lincoln.

Her science fiction novels occur within an explicit multiverse, as well as within previously existing settings (notably as established by Star Trek and Star Wars).