But mankind is too busy hating, stealing, scheming, and killing to care. As luminous green trails of cosmic dust and vapor stream across the heavens, blood flows beneath: nations wage all-out war, bitter strikes erupt, and jealous lovers plot revenge and murder. The earth slips past the comet by the narrowest of margins, but all succumb to the gases in its tail. When mankind wakes up, everyone is completely and profoundly different. An ill-fated romance between Willie Leadford and Nettie Stuart unfolds in a world buried in misery and bent on its own destruction. After the earth passes through the comet's tail, suffering, pettiness, and injustice melt away. Willie, Nettie, and everyone around them are reborn. They now see themselves and their world in a dramatically new and wonderful way.

    At his side, a mysterious woman whose life and memory he saved, whose love he has won for a second time. His name is Derec; hers is Ariel. And their story has only begun to be told...In Robot City, the late science fiction genius Isaac Asimov challenged a talented group of science fiction writers to resolve the conundrums he set for them in the context of his famous Three Laws of Robotics. In Robots and Aliens, a new challenge was put forth: What would happen if the robots of Asimov's universe were to meet alien races? Would the Three Laws that protect both humans and robots still apply when dealing with a species that is neither...?This pair of adventures, enhanced with a pair of essays by Asimov himself, continue the saga of Robot City, where the finest minds in science fiction enter the most futuristic landscape in robot history!

    Helliconia is emerging from its centuries-long winter. The tribes of the equatorial continent emerge from their hiding places and are again able to dispute possession of the planet with the ferocious phagors. In Oldorando, love, trade and coinage are being redisovered,This is the first volume of the Helliconia Trilogy -- a monumental saga that goes beyond anything yet created by this master among today's imaginative writers.

    For aeons this golden-skinned, golden-eyed race had provided the universe mercenary soldiers of almost unimaginable ability. But now the mri have faced an enemy unlike any other - an enemy whose only way of war is widespread destruction. These "humans" are mass fighters, creatures of the herd, and the mri have been slaughtered like animals.Now, in the aftermath of war, the mri face extinction. It will be up to three individuals to save whatever remains of this devastated race: a warrior - one of the last survivors of his kind; a priestess of this honorable people; and a lone human - a man sworn to aid the enemy of his own kind. Can they retrace the galaxy-wide path of this nomadic race back through millennia to reclaim the ancient world which first gave them life?

    Includes The Guardians of Time (1981) and Time Patrolman (1983).

    The ISBN 0-440-04182-1 is derived from the SBN 440-04182-095 on the spine.JANDAR THE ALIEN ENSLAVEDon Callisto, moon of Jupiter, a world of black and crimson jungles where the hand of every man is lifted in eternal enmity against every other... a savage, hostile world on which he is first held prisoner by the fearsome insect-men, only to be freed for a more binding slavery in the deadly clutches of the insidious Sky Pirates... and in the incalculable aura of the beautiful princess Darloona who elicits love almost beyond the limits of his mortal soul...(Source: back cover)

    That was no handicap to the merchant princes, who came to Earth for soldiers and returned to the stars with the best the planet had to offer: the legionaries of the Roman Empire!