It was raining heavily. At the entrance of the Gongyuan of the Ministry of Rites, Chen Yan pulled out a list of names stained with ink from his sleeve in front of a room full of dignitaries. He pointed at Su Dai's name and said, "On this piece of paper, the ink is newly written, but the writing is on old paper. Someone has erased the name that was not included in the list and forced a dead person into it." ' When the whole audience was in an uproar, Su Dai turned around with a smile and revealed with her backhand that the examiner's private seal seal was mixed with cinnabar poison. The two of them lived in separate camps in the ruins of the Gongyuan, but were forced to share a changed list. Sun Boqian, the old library clerk in the archives, threw in half a copper key and asked them to exchange this list for an old case file. However, as soon as the key was obtained, Zhao Jingting's knife was placed on Chen Yan's neck. Chen Yan suddenly tore the list in half, stuffed one half into Su Dai's palm, and threw the other half into the rainstorm: "Go check the secret code on it, and leave me alone." ' Su Dai clutched the half piece of paper and realized for the first time that this scapegoat apprentice was more difficult to deal with than she thought. On the half piece of paper, there was a drawing of the mechanism of the cellar of Gu Chunniang Teahouse.
