Ringworld Engineers : Paperback : Random House USA Inc : 9780345334305 : 0345334302 : 01 May 1990 : A return voyage to the astonishing world of Larry Niven’s Ringworld, with even more remarkable adventures and surprises, and a solution to that tantalizing question left from the earlier book: how was Ringworld built and by whom? It’s been twenty years since the quixotic and worldsweary Louis Wu discovered the Ringworld. Now he and Speaker-To-Animals are going back, captives of the Hindmost, a deposed puppeteer leader. With Louis’ help, the Hindmost intends to regain his status by bringing back...