The Three-Body Problem. Book 8

In her youth, E Wenjie was ready to do anything to prove the existence of intelligent life beyond Earth. She even risked her job at the "Red Coast" base — and secretly sent a message to space on behalf of humanity through the Sun. According to her hypothesis, it served as a natural amplifier of radio waves. After a long eight years, when the girl had almost resigned herself to the hopelessness of her idea, a message from an extraterrestrial civilization arrived at the base! However, its content turned out to be completely unexpected: "Do not reply! Do not reply! Do not reply!!!"
On that fateful day, E Wenjie learned about a planet called Trisolaris and condemned all humanity to destruction…