Prologue

Rukbat, in the Sagittarian Sector, was a golden G-type star. It had five planets, two asteroid belts and a stray planet that it had attracted and held in recent millennia. When men first settled on Rukbat’s third world and called it Pern, they had taken little notice of the strange planet swinging around its adopted primary in a wildly erratic elliptical orbit. For two generations, the colonists gave the bright Red Star little thought—until the path of the wanderer brought it close to its stepsister at perihelion. When such aspects were harmonious and not distorted by conjunctions with other planets in the system, the indigenous life form of the wandering planet sought to bridge the space gap between its home and the more temperate and hospitable planet. At these times, silver Threads dropped through Pern’s skies, destroying anything they touched. The initial losses the colonists suffered were staggering. As a result, during the subsequent struggle to survive and combat this menace, Pern’s tenuous contact with the mother planet was broken.

To control the incursions of the dreadful Threads—for the Pernese had cannibalized their transport ships early on and abandoned such technological sophistication as was irrelevant to this pastoral planet—the more resourceful men embarked on a long-term plan. The first phase involved breeding a highly specialized variety of a life form indigenous to their new world. Men and women with high empathy ratings and some innate telepathic ability were trained to use and preserve these unusual animals. These dragons—named for the mythical Terran beast they resembled—had two valuable characteristics: they could get from one place to another instantaneously and, after chewing a phosphine-bearing rock, they would emit a flaming gas. Because the dragons could fly, they were able to char Thread in midair, and then escape from its ravages.

It took generations to develop to the fullest the potential of these dragons. The second phase of the proposed defense against the deadly incursions would take even longer. For Thread, a space-traveling mycorrhizoid spore, with mindless voracity devoured all organic matter and, once grounded, burrowed and proliferated with terrifying speed. So a symbiote of the same strain was developed to counter this parasite, and the resulting grub was introduced into the soil of the southern continent. The original plan was that the dragons would be a visible protection, charring Thread while it was still skyborne and protecting the dwellings and the livestock of the colonists. The grub-symbiote would protect vegetation by devouring any Thread that managed to evade the dragons’ fire.

The originators of the two-stage defense did not allow for change or for hard geological fact. The southern continent, overtly more attractive than the harsher northern land, proved unstable and the entire colony was eventually forced to move north to seek refuge from the Threads in the natural caves on the continental shield rock of the north.

The original Fort, constructed in the eastern face of the Great West Mountain Range, soon grew too small to hold the colonists. Another settlement was started slightly to the north, alongside a great lake conveniently formed near a cave-filled cliff. But Ruatha Hold, as the settlement was called, became overcrowded within a few generations.