For 60 000 years the five races of the Galactic Milieu have watched and waited for the time when human mental development on Earth is ready for Intervention . . .
As the 20th Century draws to its end, phenomenal mental powers are displayed by 'operants' all across our planet. They can 'farspeak' one another telepathically; they can build mental shields. They are capable of coercion by power of mind . . .
One of these is Rogatien Remillard, dealer in second hand books, whose memoirs form the core of this chronicle.
Intervention is Julian May's extraordinary precursor to a new trilogy of the Galactic Milieu. It is the story of a world where the mind has become a weapon; and of two brothers, each possessed of astonishing powers - one a peace bringer, the other an advocate of evil...
