Charon

Valentine's Day 2111: Charon's Shadow Passes Over Pluto. Two astronomers park on Charon's near side to watch the eclipse, unaware that their tryst will lead to a saga of sabotage, murder, treachery, and horror. The search for answers for these mysteries ranges from the Caine Toad gang hideout in the Jamaican jungle, to the CIA Headquarters in Kansas City, to the L2 Buzz Aldrin Space Station, to the Lunar city of Marius Hills, and then reaches across the Solar System, past the Ceres' rebellion, and onto Pluto's Port Tombaugh where it crosses the Acheron Bridge to the Lowell II Observatory on the far side of Charon, aworld one step beyond the edge of the 22nd Century Solar System. Maybe a step too far