When a mining colony on an endangered moon is threatened, it’s a race against time for the Enterprise crew to find a solution in this original novel set in the universe of Star Trek: The Original Series. The USS Enterprise responds to a distress call from a vital dilithium-mining colony in the Klondike system. The colony is located on Skagway, a moon orbiting Klondike-6, a gas giant not unlike Saturn. For unknown reasons, the planet’s rings are coming apart, threatening the colony and its inhabitants. Kirk and his crew need to find a solution—fast.There are more than 3,000 colonists, including hundreds of families, on Skagway, which is more than even the Enterprise can take on, and there are no other rescue ships or habitable planets anywhere in the vicinity. Meanwhile, an approaching comet that may be the source of the crisis turns out to be a mysterious alien probe. Sensors indicate that the probe is incredibly old and running low on power. Suspecting that the probe may have something to do with the threat to Skagway, Kirk has the probe beamed aboard the Enterprise. Suddenly after a blinding flash, Kirk suddenly finds himself floating in orbit above Saturn in our solar system, drifting in space wearing a twenty-first century NASA spacesuit. What just happened?

Colonel Shaun Christopher, commanding the first manned mission to Saturn in 2020, and Captain Kirk, sent to stop a planet's rings from falling apart, try to cope with their new situations after they switch places.

The Ephrata Institute is an intellectual think tank at the outer fringes of the final frontier. Dedicated to the arts and sciences, the Institute seems an unlikely target for an invasion, but it proves easy pickings when the Crusade comes from beyond, determined to impose its harsh, unbending Truth on all the worlds of the Federation. Armed with weaponized gravity, the alien Crusaders will stop at nothing to rescue the universe from its myriad beliefs . . . even if it means warping the mind and soul of every sentient being they encounter. Responding to an urgent distress signal, Captain James T. Kirk and the crew of the U.S.S. Enterprise soon find themselves in conflict with the Crusade, and facing individual challenges. When Kirk and Spock are transported to the Crusade’s distant homeland to confront the source of the invasion, Sulu finds himself trapped behind enemy lines, while Lieutenant Uhura is faced with possibly the most difficult decisions of her career. As the Crusade sets its sights beyond Ephrata IV, it is up to the Enterprise and its besieged crew to keep freedom of thought from being crushed beneath the weight of worlds!

When a mysterious assassination threatens the peace process the U.S.S Enterprise is overseeing in a distant solar system, Captain James T. Kirk suspects Lenore Karidian, who tried to kill him twenty years earlier.

An original novel set in the universe of Star Trek: The Original Series that reveals long-held secrets about Captain Kirk's past for the first time! STARDATE 6122.5. A diplomatic mission to the planet Yusub erupts in violence when ruthless Orion raiders attempt to disrupt the crucial negotiations by force. Caught in the midst of a tense and dangerous situation, Captain James T. Kirk of the U.S.S. Enterprise finds an unexpected ally in the form of an enigmatic stranger who calls herself “Annika Seven.” STARDATE 53786.1. Seven of Nine is taking part in an archae­ological expedition on an obscure planetoid in the Delta Quadrant when a disastrous turn of events puts Voyager’s away team in jeopardy—and transports Seven across time and space to Yusub, where she comes face-to-face with one of Starfleet’s greatest legends. STARDATE 6122.5. Kirk knows better than most the danger that even a single castaway from the future can pose to the time line, so he and Seven embark on a hazardous quest to return her to her own era. But there are others who crave the knowledge Seven possesses, and they will stop at noth­ing to obtain it—even if this means seizing control of the Enterprise!

There are moments glimpsed only in shadow, where darkness rules and evil incarnate thrives. You hope against hope that in your lifetime, evil is relegated to the shadows. But what if it wasn't? What if you lived in a universe where your life was measured only by what you could do for the Empire? What would you do to survive? Would you sell your soul to free yourself? If you were offered the chance to rule, would you seize it? If you could free your universe from the darkness but only at the cost of your life, would you pay that price? Star Trek: Enterprise®—she seized power in a heartbeat, daring to place herself against all the overlords of the Empire. Empress Hoshi Sato knows the future that could be; now all she has to do is make sure it never happens. For her to rule, she must hold sway not only over the starship from the future but also over her warlords, the resistance, and her Andorian husband. As quickly and brutally as Hoshi seized power, imperial rule is taken from her. Her only chance to rule again is to ally herself with a lifelong foe, and an alien. Star Trek® One man can change the future, but does he dare? Spock, intrigued by the vision of another universe's Federation, does what no Vulcan, no emperor, has ever done: seize power in one blinding stroke of mass murder. And at the same instant he gains imperial power, Spock sows the seeds for the Empire's downfall. Is this a form of Vulcan madness, or is it the coolly logical plan of a man who knows the price his universe must pay for its freedom? Star Trek: The Next Generation®—Humanity is a pitiful collection of enslaved, indentured, and abused peoples. No one dares to question the order, except at peril of their lives. One man survives by blinding himself to the misery around him. However, Jean-Luc Picard resists, just once. And in that one instant he unlocks a horror beyond the tyranny of the Alliance. Can a man so beaten down by a lifetime of oppression stop the destruction?

An epic new Star Trek saga by New York Times bestselling author Greg Cox set during the original five-year mission! The planet Vok is holding its first free elections after years of oppressive military rule. Captain James T. Kirk and the crew of the Starship Enterprise have been dispatched by Starfleet to serve as impartial observers, but remaining neutral proves a challenge, as Kirk confronts a tangled web of scandal, conspiracy, and assassination plots—with the stability of an entire sector at stake. To make matters worse, Dr. Leonard McCoy has vanished while on a mission of mercy to Braco, a nearby planet only a system away. With Kirk unable to abandon his vital mission on Vok to hunt for his friend, it’s up to First Officer Spock and Christine Chapel to lead a team in search of the missing doctor, even if it means risking whatever fate befell McCoy. Unknown to his friends and crewmates, however, McCoy has been spirited away to another world, Ozalor, where he’s expected to find a cure for a mysterious ailment plaguing a member of the planet’s ruling family. Torn between his Hippocratic oath and his desire to escape, McCoy finds himself at the center of deadly palace intrigues—and a struggle for power that may ultimately consume all three worlds!