Kapp, Colin. Cageworld 3: The Tyrant of Hades. London: New English Library, 1982.
A team of heroes discovers "that the Neptune [Dyson] shell has been taken over by an alien intelligence, which has displaced man's friendly neighborhood computer-god Zeus for its own nefarious purposes." Rev. Brian Stableford, SF&FBR #8 (Oct. 1982): 23, source for this entry, and quote,