A science fiction novel written by Roger Zelazny and Fred Saberhagen in 1982, and an interesting example of their style. The protagonist, Donald, is able to see inside and control computers with his mind. He gradually discovers his memories have been manipulated, and that he's been retired from his psychic espionage team at a large energy concern over creative differences.

By now, the authors' early 80's conception of the "high-tech future" is pleasantly dated, but once again, Zelazny can be seen blazing trails for works to come ranging from Neuromancer (a noirless cyberspace is here, and so are many of the details of its appearance, feel, and functioning- from ice to AI's) to Ghost in the Shell (the network itself becomes self-aware, and works to mysterously influence events in the real world).