Hugo Award finalist by a Hugo and Nebula Award-winning author!

In 2007, a signal is detected coming from the Alpha Centauri system. 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 process a nearly 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.

ROBERT J. SAWYER has won the Hugo, Nebula, John W. Campbell Memorial, Seiun, and Aurora Awards, all for best science fiction novel of the year. His novels include Hominids, Rollback, Wake, FlashForward (basis for the TV series), and The Oppenheimer Alternative. A member of the Order of Canada, he lives near Toronto.

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• Science Fiction & FantasyScience Fiction

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