761st century. Humanity has spread throughout the Universe. But it is ruled by one tough force - the Brotherhood of psychohistorians, who have secret knowledge and the ability to predict future events. Violation of the secret entails a punishment that is worse than death: the destruction of a personal “pam” - a nanocomputer unit that is given to a person shortly after birth and accompanies him throughout his life, immeasurably enhancing the capabilities of the brain.

But desperate rebels again and again they are trying to overthrow the power of psychocracy.

And the bravest of them is the mathematician Aaron Ouza...