On the streets of Zhuque in Chang'an of the Tang Dynasty, at the third watch, a blood-stained dagger pierced the secret report and nailed it to Pei Rang's feet. He picked it up and saw that there were only seven words on it: "The prince will kill the king tomorrow." - This was the first bomb that set off the storm in the city. No one knew that this seemingly idle and uninhibited dandy had already used a "deduction chessboard" to have a panoramic view of the civil and military affairs of the entire dynasty. When the Eastern Palace is crowded with soldiers and the emperor is in danger, he only needs to sit in the teahouse on Zhuque Street and wait for a stick of incense to control everyone's last move through the chess game. In this game of chess, he not only wanted to ensure that the emperor survived tonight, but also wanted to make the gang of masterminds who thought they had succeeded see with their own eyes that the "dragon robe" found in the prince's palace became irrefutable evidence that they could not throw away.
