He did not know what drove him to explore the empty lands to the north, where the great skeleton ruins of the old civilization rusted away in the wreckage of mankind's hopes.But he could not resist the urging that led him through danger and adventure, to the place where he faced the menace of the Star Men.Two centuries after an atomic war on earth, a silver-haired mutant sets out on a dangerous search for a lost city of the ruined civilization.

    By dawn, only a dead city remains, eerily quiet and still, except for mutant beasts that hide from the light, multiply, and await the shadows of night to continue their relentless advance.Ordered to investigate the unfolding crisis, biowarfare specialist Carolyn Ridenour barely escapes the creatures’ nocturnal onslaught, saved in the nick of time by Colonel Garrett Hoffman, who lost hundreds of his troops to a swarm that neither bombs nor bullets can stop.As Carolyn and Garrett race to stop the plague, a battered and broken government prepares to release the fury of America’s nuclear arsenal on its own soil and its own citizens. The Gemini Effect was originally published as The Mengele Effect. This edition has been completely edited and revised, including significant plot changes.