They were Earth's finest minds: the most brilliant of the young generation of scientists who alone could save the overburdened planet. But the tyrannical World Government feared their breakthrough in genetic engineering, and they were rewarded for their success by the cruellest punishment ever devised. Banned from Earth forever, their exile became the greatest challenge of mankind. They left behind a million years of evolution to face the unknown on a one-way voyage across the Universe.
The exile of reason from human life drives an impassioned quest for intellectual understanding. Lou Christopher contemptuously writes off the world's rejection of reason and indifference to the forced exile of its greatest minds. Caught in a power struggle over her destiny, Valery Loring emerges triumphant on the premise that human freedom lies in a basic choice: to think or not to think. His thinking undercut by superstition-still, Linc must know before he can decide to save himself and his peers from disaster.