In the final part of the trilogy, we find that space and time have been altered by the Janus Gate. Members of the crew of the Enterprise have been thrown backward and forward through time, altering history, and then returning to the present many years older or younger. Mr Spock and Chief Engineer Scott have managed to avoid the effects of the Janus Gate and are trying desperately to reorganise the crew and to find a way to pass them through the gate to restore them to their proper ages. This task is made even more difficult when they realise that they must re-adjust history to ensure not only that everyone still exists in the present, but also that the Federation itself has a future. Captain James T. Kirk, meanwhile, remains trapped in his own past. As a boy, he barely survived a brutal massacre on Tarsus IV - an event which resonates through twenty-third century history. Can he stand by now and watch those same events unfold again? The traumatic memories of Enterprise crewmember Lt Kevin Riley -- a fellow survivor of Tarsus IV -- may be Spock's best hope to locate the captain before time runs out for them all.

Thanks to the accidental triggering of an ancient alien technology, Captain Kirk has been banished to his own past. During a brutal massacre on Tarsus IV, Kodos the Executioner entered the history books as one of the most genocidal tyrants of the twenty-third century. As a boy, Kirk barely survived. Can he stand by now and let it happen again? Lt. Kevin Riley is the only other survivor of Tarsus IV serving aboard the U.S.S Enterprise. His traumatic memories provide Spock's best hope of finding their time-lost captain - before Kirk alters their time line forever!

Continuing from 'Present Tense', the rescue mission sent out by Mr Spock in search of the missing Enterprise crew has also disappeared. Lost in both time and space, the three-man team on board the shuttle Copernicus are flung by the power of the vortex into a hellish future, where the Gorn Hegemony has all but conquered the United Federation of Planets. Stranded on a transformed Federation colony, now a Gorn mining outpost worked by human slaves, Helmsman Hikaru Sulu encounters an older version of a man he barely knows: Pavel Chekov, leader of the scattered bands of freedom fighters against the tyrannical Gorn oppressors. Nor is Sulu himself unchanged by this new future -- in this timeline he has become a battle-scarred Starship captain. For Captain James T. Kirk, meanwhile, the vortex has had the opposite effect, as he himself is hurled back through time and into his former boyhood...

Through four decades, five television series comprising over seven hundred episodes, ten feature films, and an animated series, fandom's thirst for more Star Trek stories has been unquenchable. From the earliest short-story adaptations by James Blish in the 1960s, followed by the first original Star Trek novels during the seventies, and on throughout the eighties, nineties, and into the twenty-first century, fiction has offered an unparalleled expansion of the rich Star Trek tapestry. But what is it that makes these books such a powerfully attractive creative outlet to some and a compelling way to experience the Star Trek mythos anew to others? Voyages of Imagination takes a look back on the first forty years of professionally published Star Trek fiction, revealing the personalities and sensibilities of many of the novels' imaginative contributors and offering an unprecedented glimpse into the creative processes, the growing pains, the risks, the innovations, the missteps, and the great strides taken in the books. Author Jeff Ayers has immersed himself in nearly six hundred books and interviewed more than three hundred authors and editors in order to compile this definitive guide to the history and evolution of an incomparable publishing phenomenon. Fully illustrated with the covers of every book included herein, Voyages of Imagination is indexed by title and author, features a comprehensive timeline, and is a must-have for every fan.

SIREN SONGS As a small child, Jules Bashir underwent illegal genetic enhancements that forever altered the natural course of his life. As an adult, ever since the day he discovered what his parents had done, Dr. Julian Bashir has wondered what he might have become if "Jules" had been allowed to live, certain he would never know the answer. But when the lure of a strange alien artifact in the Gamma Quadrant inexplicably begins to reverse Bashir's enhancements, the person he had thought long dead is given a second chance at life. Ninety thousand light-years away, as the crew of Deep Space 9 ™ tries to comprehend a shocking tragedy, Ro Laren makes a fateful decision about her life aboard the station. And although political maneuverings and failing diplomacy have already extinguished all hope of a real, lasting peace between Bajor and Cardassia, one man's search for his true calling may lay a new foundation for the future.

When an abandoned space habitat is found within a distant asteroid belt, the Starship Enterprise is sent to investigate. Captain Kirk and his crew discover an artificial world full of technological marvels -- and unexpected dangers. But wonder and curiosity give way to fear when the habitat's shifting orbit sends it on a collision course with an inhabited planet within the same solar system. Now Kirk and Spock must find a way to save the planet without destroying a treasure trove of alien science, and time is running out...

SINS PAST Chaos erupts aboard Deep Space 9 ™ as the crew begins a desperate search for a killer in their midst, catapulting Colonel Kira Nerys on a dangerous chase into the heart of the Federation. But the crime she seeks to avenge is part of a plot more ancient and far-reaching than anyone suspects, and that secret, if exposed, could divide worlds throughout the Alpha Quadrant. Meanwhile, as the Starship Defiant makes its way back toward the wormhole and home to DS9, a startling discovery shakes Commander Elias Vaughn to his core and brings to light the truth behind the most tragic mission of his long life. As the crew struggles with the implications of what they¹ve found, their captain¹s judgment comes into question...and casts doubt on the final outcome of their historic voyage through the Gamma Quadrant. LESSER EVIL