High above the planet Harmony, the Oversoul watches. Its task, programmed so many millennia ago, is to guard the human settlement on this planet, to protect this fragile remnant of Earth from all threats...to protect them, most of all, from themselves.

For millennia, the planet Harmony has been protected by the Oversoul, an artificial intelligence programmed to prevent thoughts of war and conquest from threatening the fragile remnant of Earth's peoples. But as the Oversoul's systems have begun to fail, a great warrior has arisen to challenge its bans.

With the continuing failure of the Oversoul, the artificially intelligent guardian computer of the planet Harmony, the human colonists have begun to repeat the devastations of war and conquest wrought on Earth. To repair itself and avert disaster, the Oversoul has called a group of 16 refugees from the fallen city of Basilica to a hidden, abandoned spaceport where the ancient starships lie.

When war broke out on the planet Harmony, the Oversoul of that colonized world selected the family of Wetchik to carry it back to long-lost Earth. Now the tribe is ready at last to take a ship to the stars. But from the beginning there has been bitter dispute between Wetchik's sons, Nafai and Elemak. On board the starship Basilica, the children of the tribe will become pawns in the struggle for control of reclaimed Earth.

High above Earth orbits the starship Basilica. On board the huge vessel is a sleeping woman. Of those who made the journey, Shedemei alone has survived the hundreds of years since the Children of Wetchik returned to Earth.