While the deadly Thread continues to fall, F'lar must combat internal conflicts among the dragonriders.

With the discovery of Aivas, the artificial intelligence hidden for centuries in Pern's southern continent, the residents of the third planet of the sun called Rukbat have learned how to end the threat posed by the periodic fall of Thread from the erratic red star that orbits the planet. Despite the abundance of rediscovered knowledge, new dangers and old fears surface, forcing Dragonriders, Holders, and Craftmasters all to reconsider their purpose...

Pellar, a gifted tracker and orphan, accompanies Masterharper Zist on a secret mission to the Natalon coal-mining camp, where they discover a group of disillusioned workers who seem to have lost all hope.

The greatest dream of the dragonriders was to find a way to eradicate Thread completely, so that never again would their beloved Pern be threatened with destruction.

A tale of dragons in the fantasy land of Pern and the boy who communicates with them by telepathy. He is Rob, a musical genius, and when he grows up he leads the dragons and their riders in battle against an evil man who denies people education.

Xhinna, the first female Weyrleader, and her group of young dragonriders struggle to rebuild the decimated dragon population and protect the world from a deadly alien spore by collecting dragon eggs and protecting baby dragons from predators and saboteurs.

A collection of 15 stories. In one, the Earth plunges back in time to different historical periods, in another, a girl communicates by telepathy with dragons. By the author of All the Weyrs of Pern.