"Saga of Pliocene Exile" is a science fiction novel by Julian May, part of the Galactic Milieu Trilogy. Set in a future where humanity has developed psychic abilities, the story follows a group of exiles from the Pliocene era who are transported to a distant future. They must navigate a world filled with advanced technology and complex social structures while facing challenges from both their past and present. The narrative explores themes of evolution, identity, and the consequences of human actions. As the characters adapt to their new environment, they encounter various factions and individuals, including the powerful Tanu and Firvulag, who play significant roles in the unfolding drama.