The Morgaine Cycle Series by C.J. Cherryh

Scattered about the galaxy were the time-space, gates of a vanished alien race. Long before the rise of the native civilizations, they had terrorized a hundred worlds--not from villainy but from folly. Now the task was to destroy their potency for mischief. This is the story of one such Gate.

Book by Cherryh, C. J.

The Gates were relics of a lost era. The Union Science Bureau surmised that they had once linked a whole network of civilizations throughout the galaxy-an empire ruled by a ruthless race known as the qhal. This qhal empire had spanned both Space and Time, for their Gates warped time, enabling qhal travelers to step from point to point across light-years unaged. It was even possible to travel into the future... moreThe Gates were relics of a lost era. The Union Science Bureau surmised that they had once linked a whole network of civilizations throughout the galaxy-an empire ruled by a ruthless race known as the qhal. This qhal empire had spanned both Space and Time, for their Gates warped time, enabling qhal travelers to step from point to point across light-years unaged. It was even possible to travel into the future. However, intervention in backtime could affect entire worlds and civilizations, could change the course of galactic history, could destroy empires and possibly even implode time itself...and this was what the Science Bureau believed had happened-sometime, somewhere in the unreachable past, an arrogant power-drunk qhal had done the unthinkable, and warped the very fabric of space and time. Morgaine: pale in coloring and as tall as the tallest men, it seems clear that this mysterious traveler is a descendent of the long-vanished qhal. Aided by a single warrior honor-bound to serve her, it is her mission to travel from world to world sealing the ancient Gates whose very existence threatens the integrity of the universe. But will she have the power to follow her quest to its eventual conclusion-to the Ultimate Gate or the end of time itself?Cover artist: A. Pedro less

The fourth and final book in the epic Morgaine science fiction sagaMorgaine must meet her greatest challenge—Gault, who is both human and alien, and also seeks control of the world and its Gate. She will meet the true Gatemaster—a mysterious lord with power as great, or greater, than her own.