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One hundred years after Dr. Irwin C. Jacobs begins his quest to develop a truly cognitive neural array, "artificial sentients" live amongst us and are sold in retail stores. With the establishment of a new slavery comes a new abolitionist movement and a new underground railroad—run by people determined to protect these new slaves from the worst abuses of their human owners. One such group carries out raids of such daring, news of their exploits is widely reported, and they quickly become the stuff of legend. This is their story - a story of courage, sacrifice and the will to be free.

Includes the series introduction: