This world has three suns--the shocking truth that Wang Miao uncovers about the world in Three Body leads him to the game's second level. Now his task is to successfully calculate the three suns' motions, and his companions come up with an absurd idea: Why not create a computer to do the job--entirely out of human beings? Thus, Wang Miao witnesses the formation of a revolutionary piece of technology, while in the real world, his accomplishments earn him an invitation to a gathering of like-minded players...