The Three-Body Problem. Book 4

On the advice of Captain Shi, Wang Miao returns to the game "Three Bodies". This time he finds himself in Medieval Europe, where, standing before the Pope, he puts forward a bold theory that in the world of "Three Bodies" there exists not one, but three Suns. Such a performance costs the physicist dearly - he is sentenced to death, after which access to the game will be closed to him forever...
Meanwhile, Wei Cheng tells the police that his wife will deal with him if he does not solve the three-body problem. Captain Shi, who has been waiting for a reason to arrest Shen Yu Fei, immediately goes to her house, but finds only her corpse...