Titan

Author John Varley introduces a new generation to the brilliant world of the Gaean Trilogy with Titan
Seven indivduals, each possessing their own unique skills and talents, agree to embark on a perilous mission to explore Themis--a newly discovered and enigmatic moon. As their journey unfolds, the team faces unforeseen challenges, treacherous terrain, and beings from ancient alien civilizations.
Unlikely alliances must be formed and deep secrets need to be revealed in order to survive and chart a course back home.