Moreta: Dragonlady of Pern

Blurb

Moreta: Dragonlady of Pern is a science fiction novel by the American-Irish author Anne McCaffrey. It was the seventh book published in the Dragonriders of Pern series, more than twenty books by Anne and eventually her son Todd McCaffrey.
With this book, McCaffrey jumped 1000 years back in Pern history from the setting of the first book, Dragonflight, to a time memorialized in song and rendered legendary from the standpoint of the previous books.