The Gaea Trilogy consists of three science fiction novels by John Varley. The stories tell of humanity's encounter with a living being in the shape of a 1,300 km diameter Stanford torus, inhabited by many different species, most notably Titanides, in orbit around the planet Saturn.The novels are:Titan (1979)Nebula Award nominee, 1979; Hugo Award nominee, Locus Award winner, 1980Wizard (1980)Hugo and Locus Award nominees, 1981Demon (1984)Locus Award nominee, 1985↑ ↑ ↑ ↑