Dragonriders of Pern

Weyrwoman Fiona struggles to keep her surviving Weyr in fighting shape while Lorana plans a complicated time-travel journey to save their world.

Returning from a three-year visit to a past world where she worked to heal sick and injured dragons, Fiona, rider of the gold queen dragon Talenth, struggles to balance responsibility and ambition when the dragons of her own time begin falling ill.

On the planet of Pern, a small white dragon and his rider prove their value as destroyers of Threadfire.

Colonists from Earth set out to protect their new home, Pern, from the deadly spores that fall from the sky and devour everything in their path.

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.