The World Wreckers

Blurb

The World Wreckers is a science fiction novel by Marion Zimmer Bradley in her Darkover series. It was first published by Ace Books in 1971. The book is notable for a complex sub-plot involving the sexual interactions between hermaphrodite native species, known as the chieri, and humans.
Though the book seems minor on a stand-alone basis, it is a pivotal event in the part of the series that Zimmer Bradley identified as "After the Comyn/Against the Terrans". Every book that follows chronologically, refers to The World Wreckers.
In "Author's Notes on Chronology", Bradley implies that The World Wreckers occurs about eighty years after the events in The Winds of Darkover, basing this assertion on the age of Desideria Storn in the two books.