Larry Niven’s Ringworld is a piece of classic science fiction that everyone interested in the genre should read. Here’s my review.
The year is 2850 AD. Louis Wu is celebrating his 200th birthday. To make the day last as long as possible, Louis moves west1 through transfer booths, when one of them suddenly malfunctions. He finds himself in a hotel room with a Pierson’s puppeteer, a peculiar-looking, two-headed alien. The puppeteer has an offer for Louis, and it’s an offer he can’t refuse.
The puppeteer propose that Louis joins him, and two additional, unnamed, crew members on a journey to an undisclosed location. Louis reward, should ha accept the mission, will be access to a space ship with quantum II hyperspace shunt engines. These engines, developed by the puppeteers, will cut travel time through space to a fraction of what it currently is. Any race with access to the engines would find themselves in a superior position compared to races that only have access to conventional, hyperspace shunt engines.