"Er Tang She Zi" is also known as "Baolian Lantern" and "Beat the Son to Escape". The Three Holy Mothers of Huashan fell in love and got married to Liu Yanchang, a scholar in the mortal world. The brother of the Three Holy Mothers was angry that his sister had a mortal heart and forced her to suffer under Mount Huashan. The Third Holy Mother gave birth to a son named Chenxiang, and sent her slaves and lotus lanterns to her husband Liu Yanchang.Liu Yanchang passed the imperial examination and became the official seal of Luozhou. He married Guiying, the queen of the prime minister, and gave birth to a son named Qiu'er. Chenxiang and Qiuer grew up together, and the two brothers were very friendly. One day when he was studying in Nanxue, Chen Xiang accidentally beat Guan Bao to death because he saw Guan Bao, the son of the old master Qin Can, humiliating his master. The two returned home and told their father. Liu Yanchang was shocked after hearing this. When he asked his two sons carefully, Chen Xiang confessed and Qiu'er also stood up and confessed. Liu Yanchang then asked his wife, Wang, to interrogate him again and again. The two sons still admitted that they were as good as before, and both were willing to go to the Qin Mansion to pay for their lives. Agarwood was left by Liu Yanchang's first wife, and Qiu'er was the biological son of Mrs. Wang. When the two were scolding and questioning the two sons, Mrs. Wang was touched by the feelings of mother and son, and she couldn't help but feel sorry for Qiu'er. Liu Yanchang also felt sorry for Qiu'er because Agarwood was a motherless son. It's hard to avoid being too affectionate. The virtuous Mrs. Wang sacrificed her son for righteousness, and finally escaped with Liu Yanchang through the back door. Liu Yanchang and Qiuer went to the Qin Mansion alone to surrender and pay for their lives. Qin Can beat Qiu'er to death with a stick.Agarwood fled to the mountains and was enlightened by the Great Immortal Pili. He shed his mortal body and was given a divine axe. Chenxiang then took an ax to Erlang Temple in Huashan, wrote a poem to criticize Erlang, defeated Erlang in Huashan, split Huashan with all his strength, and rescued his mother.