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 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 collects one end of the shadow-square wire that was snapped when the ship crashed. They travel back to their crashed ship in the floating police station, dragging the wire behind them. Louis threads it through the ship to tether it to the police station. He then takes the police station up to the summit of "Fist-of-God", the enormous mountain near their crash site. The mountain had not appeared on the Ringworld map, leading Louis to conclude that it is in fact the result of a meteoroid impact with the underside of the ring, which pushed the "mountain" up from the ring's floor and broke through. The top of the mountain, above the atmosphere, is therefore just a hole in the Ringworld floor. Louis drives the police station over the edge, dragging the Lying Bastard along with it. The Ringworld spins very quickly, so once the ship drops through the hole and clears the ring, they can use the ship's hyperdrive to get home. The book concludes with Louis and Speaker discussing returning to the Ringworld. Reception Algis Budrys found Ringworld to be "excellent and entertaining ... woven together very skillfully and proceed[ing] at a pretty smooth pace." While praising the novel generally, he faulted Niven for relying on inconsistencies regarding evolution in his extrapolations to support his fictional premises. Sam Jordison described Ringworld as "arguably one of the most influential science fiction novels of the past 50 years. Concepts reused In addition to the two aliens, Niven includes a number of concepts from his other Known Space stories: The puppeteers' General Products hulls, which are impervious to any known force except visible light and gravity, and for a long time thought indestructible by anything except antimatter. The Fleet of Worlds prequels reveal two other ways that the hulls can be destroyed. The Slaver stasis field, which causes time in the enclosed volume to stand still; since time has for all intents and