Intervention (Julian May) Books in Order

Intervention sits at the hinge point of Julian May's largest universe. It is the bridge between the Pliocene books and the later Galactic Milieu novels, but calling it only a bridge undersells it. On its own terms, it is a big, patient family saga about the first appearance of metapsychic humanity and the outside powers quietly watching Earth.

The heart of the story is the Remillard family of New Hampshire. If you know May's later books, that name already tells you trouble is coming. The Remillards are brilliant, willful, devout, competitive, and unusually gifted. Through them, May tracks decades of change, from the years after World War II into a future where more and more humans begin showing psychic abilities that will eventually reshape civilization.

The aliens matter, but they stay partly offstage for a long time.

That is one of the pleasures of the series. Instead of dropping readers straight into interstellar politics, May begins with family memory, local history, marriages, grudges, and the strange new fact that some children are not developing like anyone expected. The wider Galactic Milieu is already out there, observing, judging, and sometimes nudging. But on Earth, most people are still trying to make sense of events through politics, religion, science, and fear.

The paperback split into Surveillance and Metaconcert reflects the story's two broad movements. The first half is about emergence, what it means for psychic talent to appear in scattered, uneven, often alarming ways. The second half turns toward organization and consequence, as operants learn to work together and the possibility of a collective psychic joining, the metaconcert of the title, begins to look both necessary and dangerous.

Rogatien Remillard, usually called Rogi, helps hold the whole thing together. He is not the flashiest member of the family, which makes him a good guide. Through him, the Remillards feel less like grand science-fiction archetypes and more like a real clan with sacred cows, favorite children, old resentments, and terrible blind spots. That grounded family feeling is what keeps the enormous future-history machinery readable.

The ongoing tension across the books is simple to state and hard to solve: can humanity survive the arrival of psychic power without tearing itself apart, and if not, what right does the Galactic Milieu have to intervene? That question opens the door to all the good Julian May material, family arguments that turn cosmic, moral ideals under pressure, and ambitious people who believe they can steer history.

If you are trying to decide what kind of series this is, think slow-burn science fiction with strong family drama, a long timeline, and steadily rising stakes. It explains a great deal about the Milieu universe, but it also stands well on its own as the story of how one family and one planet moved toward a future neither fully understood.