All The Weyrs of Pern Author:Anne McCaffrey For generations, the dragonriders had dedicated their lives to fighting Thread, the dreaded spores that periodically rained from the sky to ravage the land. On the backs of their magnificent telepathic drgons they flew to flame the deadly stuff out of the air before it could reach the planet's surface. But the greatest dream of the dragonrider... more »s was to find a way to eradicate Thread completely, so that never again would their beloved Pern be threatened with destruction.
Now, for the first time, it lookedas if that dream could come true. For when the people of Pern, led by Masterharper Robinton and F'lar and Lessa, Weyrleader adn Weyrwoman of Benden Weyr, excavated the ancient remains of the planet's original settlement, they uncovered the colonists voice-activated artificial intelligence system--which still functioned! And the computer had incredible news for them: There was a chance--a good chance--that they could, at long last, annihilate Thread once and for all!« less