Sailing Bright Eternity - Gregory Benford

This new, special edition of the classic concluding volume of this defining series by the eminent physicist and Nebula Award-winning author contains a teaser chapter from Benford's, The Sunborn.
The final chapter of humanity's future has begun, and three men hold the key to survival. As the fierce, artificially intelligent mechs pursue their savage and unstoppable destruction of the human race, it soon becomes apparent that three men-three generations in a family of voyagers-are their targets. Toby Bishop, his father Kileen, and his longdead grandfather each carry a piece of the lethal secret that can destroy their relentless pursuers. There is only one problem: They have no idea they possess the only weapon that can save humanity.