[[JulianMay Julian May's]] Saga of the Exiles tells the story of human malcontents who leave the Literature/GalacticMilieu, a [[TheFederation Federation]] of six allied psychic races including Humanity, and travel via a PortalToThePast to the Pliocene Era of Earth's history 6,000,000 years ago. The past is not quite what anyone expected.

The time-travelers arrive to discover the Pliocene is already inhabited by a dimorphic race of aliens ('exotics'). The exotics, who have fled their home galaxy because of religious persecution, are marooned on Pliocene Earth as well. The exotics have difficulty reproducing on Earth, and so have enslaved many of the humans in an effort to overcome this problem, interbreeding with the more robust humans and influencing the legends of CelticMythology and TheFairFolk.

The books making up the tetralogy are;

* ''The Many-Colored Land''
* ''The Golden Torc''
* ''The Nonborn King''
* ''The Adversary''

There was a non-fiction book entitled ''A Pliocene Companion'' that featured a guide to names, places, objects and so on and some essays by the writer elucidating certain aspects of the series. Any entry below citing WordOfGod is likely to have this as its origin.
!!Provides Examples Of:
* AscendToAHigherPlaneOfExistence: Marc and Elizabeth, although Marc comes back as Atoning Unifex in the Literature/GalacticMilieu trilogy, and it is revealed that Elizabeth died.
* BigDamPlot: Felice destroys the natural structure at Gibraltar that keeps the Atlantic from filling the Mediterranean Sea, thus wiping out the Tanu capital city in a GiantWallOfWateryDoom.
* BreadEggsMilkSquick: Felice's dagger is useful for "picking teeth, cutting sandwiches, pricking out transponders from rustled cattle, and putting out the lights of casual assaulters."
* BroughtDownToNormal: Elizabeth after her accident in the Milieu. [[spoiler: Her power is then restored by the trauma of passing through the time-gate.]]
* ButtMonkey: Tony Wayland, oh so much. This guy just can't catch a break [[spoiler: Until the very end]]. Of course, this is to be expected given that he is a not so subtle nod to the mythical [[Literature/WaylandTheSmith Wayland Smith]].
* CombatPragmatist: Aiken Drum, whose explanation of this might as well be the CombatPragmatist Creed:
--> ''I fight with the weapons I have. It's the only sensible way.''
* TheFairFolk: The Tanu and Firvulag, who match well to the Seelie and Unseelie Courts respectively, the Tanu representing the tall and beautiful archetype, while the Firvulag the darker, more goblin-like side. Most of the named exotics correspond directly to members of [[CelticMythology the Tuatha de Danaan and the Fir Bolg or Fomor]] -- Nodonn/Nuada, Lugonn/Lugh, Pallol/Balor, et cetera.
* FantasyGunControl: the types of weaponry permitted through into Exile are strictly controlled, and the Tanu confiscate it all anyway. The Tanu and Firvulag don't use firearms, except for some of their ritual weapons.
* FlyingDutchman: Richard Voorhees, confirmed by WordOfGod.
* GreyAndGrayMorality: So, who are the good guys?
* HalfHumanHybrid: Justified by the sentient ship having been told to find the most compatible planet for the exotics' exile.
* HonorBeforeReason: The exotics fled to Earth so they could continue to practice their bloody apocalyptic battle-religion, rather than live in peace as part of the emerging Duat Mind.
* HorseOfADifferentColor: Humans who serve the Tanu train [[http://en.wikipedia.org/wiki/Chalicotherium chalicotheriums]] ("chalikos"), a Pliocene-era herbivore, to fill the role of horses.
* ImAHumanitarian: The larger Firvulag (Ogres) are often this. From their point of view, this is [[ValuesDissonance hardly immoral]] since they consider humans to be nonpersons.
* MarsNeedsWomen: Tanu of both sexes love sex with humans, but they also use human women as surrogate mothers (their females can't carry a fetus to term on Earth) to the point of wearing them out with constant pregnancies.
* NoManOfWomanBorn: The Nonborn King.
* OlderThanTheyLook: Many of the the Ocala rebels have undergone rejuvenation, so they look thirty or forty but are really a few decades older. Owen Blanchard, the oldest of the Rebels, is about a hundred and forty and looks to be a normal old man. Marc is also self-rejuvenating; he looks fairly young but is actually about seventy at the time of the series.
* PsychicPowers: The Tanu are organized into five psychic guilds: each guild has a guild leader and its own heraldic colours, which allow others to instantly recognize the person's primary metapsychic power. Coercive (Blue), Creative (Green), Psychokinetic (Rose-gold), Farsensing (Purple) and Redactive (Red).
* PsychoLesbian: Felice
* RagTagBunchOfMisfits: Pretty much every human who passes through the time gate, since almost without exception, they're people who don't, can't or won't fit into the society of the Galactic Milieu.
* ReallySevenHundredYearsOld: The Tanu and the Firvulag, many of whom came to Earth on Brede's Ship, making them at least about a thousand. And then there's Brede herself.
* SanDimasTime: The time-gate always drops people six million years before the current modern date, so effectively the same amount of time has passed on both sides since travel began.
* {{Satan}}: Marc is identified as The Adversary.
* ScienceFantasy: Spaceships, psychics, PortalToThePast and TheFairFolk. Something for everyone.
* ShapeShifting: Many characters are able to shapeshift through use of the Creative Metafunction. Aiken Drum turns into a series of different animals [[spoiler: reflecting his personal growth and increased metapsychic strength]]. Marc turns his son Hagen into a fish for a while as a punishment and in the later books Felice can turn into a raven. Also see Voluntary Shapeshifting below.
* StableTimeLoop: Marc Remillard and Elizabeth Orme travel to the Duat galaxy to help them with their psychic development. Afterwards Marc returns alone to the Milky Way and attempts to raise the native species to operant metafunction. His first success is with the Lylmik, who are the ones who create the Galactic Milieu, against which the Metapsychic Rebellion take place, causing Marc to go back to the Pliocene where he meets Elizabeth in the first place...
* TooKinkyToTorture: Felice, eventually. Or rather, torture drives her insane to the point where pain becomes no longer a bad thing. And also unlocks her massive psionic super-powers, allowing her to [[NiceJobFixingItVillain destroy the people who were torturing her.]] Oops.
* TheTrickster: Aiken Drum, so, so much.
* TwinTelepathy: Kuhal Earthshaker and Fian Skybreaker are Tanu twins who appear to share one mind through telepathy. When Fian dies, Kuhal has to learn to be a whole person.
* VaginaDentata: The Firvulag
* VoluntaryShapeshifting: The Firvulag appear to do this, though it's accomplished through illusion rather than actual bodily change, and other Firvulag can see through it.
* WeaksauceWeakness: Iron is deadly poisonous to full-blooded Tanu and Firvulag.
* TheWildHunt: carried out by levitating Tanu knights in glass armor.