James P. Hogan – författare

Long before the world of the Ganymeans blew apart millennia ago, the strange race of giants had already vanished. All that remained of them was a wrecked ship abandoned on a frozen moon of Jupiter. Now Earth''s scientists are there, determined to ferret out the secret of the lost race. But when suddenly the Ganymeans return, they bring with them answers that will reveal the secret of our own as well.

Eons ago, a gentle race of giants fled the planet Minerva, leaving the ancestors of man to fend for themselves. Fifty thousand years ago, Minerva exploded, hurling its moon into an orbit about Earth.

In the twenty-first century, scientists Victor Hunt and Chris Danchekker, doing research on Ganymede, attract a small band of friendly aliens who are lost in time—and who begin to reveal something of the origin of mankind. Finally, man believed that he comprehended his place in the universe … until he learned of the Watchers in the stars. Now Earth finds itself in the middle of a power struggle between a benevolent alien empire and an off-shoot group of upstart humans who hate Earth more than any alien ever could.

The man on the moon was dead. They called him Charlie. He had big eyes, abundant body hair, and fairly long nostrils. His skeletal body was found clad in a bright red spacesuit, hidden in a rocky grave. They didn''t know who he was, how he got there, or what had killed him. All they knew was that his corpse was fifty thousand years old—and that meant this man had somehow lived long before he ever could have existed.