Niven later added four sequels and four worlds together worlds apart pdf free download. These books tie into numerous other books set in Known Space.
He has once again become bored with human society and is thinking about taking one of his periodic sabbaticals, alone in a spaceship far away from other people. Louis’ lover, also join the crew. They first go to the puppeteer home world, where they learn that the expedition’s goal is to investigate the Ringworld, a gigantic artificial ring, to see if it poses any threat. It rotates to provide artificial gravity 99. Night is provided by an inner ring of shadow squares which are connected to each other by thin, ultra-strong wire. The severely damaged vessel collides with a strand of shadow-square wire and crash-lands near a huge mountain, “Fist-of-God”. They set out to find a way to get home.
It will take them months to cross the vast distance. On the ground, they encounter apparently primitive human natives who live in the crumbling ruins of a once-advanced city and think that the crew are the engineers who created the ring, and whom they revere as gods. Speaker’s outrage forces Nessus to flee and follow them from a safe distance. In a floating building over the ruins of a city, they find a map of the Ringworld and videos of its past civilization. While flying through a giant storm, caused by air escaping through a hole in the Ring floor due to a meteoroid impact, Teela becomes separated from the others. While Louis and Speaker search for her, their flycycles are caught by an automatic police trap designed to catch traffic offenders.
They are trapped in the basement of a floating police station. Nessus enters the station to try to help them. Ringworld and other inhabited worlds. When her ship returned to the Ringworld the last time, they found that civilization had collapsed. The crew managed to enter the Ringworld, but some of them were killed and others suffered brain damage when the device that let them pass through the Ringworld floor failed. Teela reaches the police station, accompanied by her new lover, a native “hero” called Seeker who helped her survive. Based on an insight gained from studying an ancient Ringworld map, Louis comes up with a plan to get home.
Teela, however, chooses to remain on the Ringworld with Seeker. Louis, formerly skeptical about breeding for luck, now wonders if the entire mission was caused by Teela’s luck, to unite her with her true love and help her mature. The party travels back to their crashed ship in the floating police station. They carefully collect one end of the shadow-square wire that was snapped when the ship crashed, dragging the wire behind them. Louis threads it through the ship to tether it to the police station.