But now, someone is eliminating the Gentian line. Campion and Purslane—two shatterlings who have fallen in love and shared forbidden experiences—must determine exactly who, or what, their enemy is, before they are wiped out of existence.

    After man fled the stars, he tried to explore his own genetic frontier, creating horrible races of deformed beings - some scaled, some furred, tiny, winged and huge. Now Jask, a Pure who retains the original human genetic code, and Tedesco, a great bear with a human brain, are thrown together by their one shared and fatal trait - telepath. Hunted like animals by the fearful populace, they go in search of The Black Presence - which may be the key to mankind's place in the cosmos.

    Mysterious, unintelligible data streams in for ten years. Heather Davis, a professor in the University of Toronto psychology department, has devoted her career to deciphering the message. Her estranged husband, Kyle, is working on the development of artificial intelligence systems and new computer technology utilizing quantum effects to produce a near-infinite number of calculations simultaneously.When Heather achieves a breakthrough, the message reveals a startling new technology that rips the barriers of space and time, holding the promise of a new stage of human evolution. In concert with Kyle's discoveries of the nature of consciousness, the key to limitless exploration---or the end of the human race---appears close at hand.Sawyer has created a gripping thriller, a pulse-pounding tour of the farthest reaches of technology. Factoring Humanity is a 1999 Hugo Award Nominee for Best Novel.

    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 50,000 years old; and that meant that this man had somehow lived long before he ever could have existed!