When Dr. Walter T. Godwin sets out to study a rare flower in Tibet, he has no idea of what adventures await him. Meeting old friends in the secluded Himalayas, he quickly finds himself fleeing from the descendents of a lost Persian Empire city right into the domain of a seemingly omnipotent metal intelligence. This extraterrestrial metal intelligence is made up of a collective composed of living cubes, pyramids and spheres. Even stranger, the intelligence seems to work through a human woman of great beauty, Norhala. This metal intelligence is beyond anything that Godwin and his compatriots can even understand--is humanity about the be replaced as the ruler of the Earth?