The Three-Body Problem is a captivating space thriller mystery book written by Liu Cixin. Set against the backdrop of China's Cultural Revolution and the present day, the story follows a group of scientists as they uncover a conspiracy involving an alien civilization and a virtual reality game. As they delve deeper into the mystery, they must confront the possibility of an impending alien invasion and the existential questions it raises. With its blend of science fiction, political intrigue, and philosophical musings, The Three-Body Problem offers a unique and thought-provoking take on the space thriller genre.