Also published as Extro.

Nebula Award nominee 1975, Hugo Award nominee 1976.

A band of immortals recruit physicist Sequoya Guess – who gains control of Extro, the super-computer that controls all mechanical activity on Earth. But the task of the merry suddenly becomes a fight for the future of Earth. Sequoya Guess must be killed. And how do you kill an immortal?

 

Published
1975

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