Among the 108 good men of Liangshan in "Water Margin", there are 3 very special women, of which "Mother Night Fork" Sun Erniang is the most special one. In fact, before Sun Erniang and her husband prepared to defect to Liangshan, they accumulated 18 boxes of gold and silver jewelry at the Shizipo Inn in Mengzhou, and before going to Liangshan, Sun Erniang and her husband discussed and decided to bury 18 boxes of treasure in a secret location, so that if the two could not mix in Liangshan, they could still rely on these treasures to make a comeback, so where did Sun Erniang bury the treasure?
Originally, in tancheng county, which is now the border between Shandong province and Jiangsu province, there was a hill called "Maling Mountain", and at the foot of the mountain there was a small village named Sun Jiatang, which was said to be most likely the hometown of Sun Erniang. According to the "Great Song Xuanhe Testament", Sun Erniang has been a "hot girl" personality since she was a child, and she does not love red clothes and loves arms, so it is difficult to find a partner when she reaches the age of marriage. In desperation, Sun Erniang's father competed to recruit relatives, and finally chose Zhang Qing as Sun Erniang's partner.
After the two married, they opened an inn near Cross Slope to rob past merchants, but within a few years, Sun Erniang's Cross Slope Inn became famous, and the two also accumulated a lot of wealth. Later, Wu Song and the others passed by the inn, and the two knew that opening a black shop was not a long-term solution, so they decided to go to Liangshan with Wu Song and others to conspire for a big event. Before leaving, Sun Erniang pulled all 18 boxes of gold and silver jewelry left over from the sale of her inn back to her hometown, and secretly instructed the servants to bury 18 boxes in different places, so it is reasonable to say that Sun Erniang's treasure should be near Maling Mountain.
It is said that later, before sun erniang's servants died, they left a 10-word riddle revealing the burial place of the treasure: "Two mountains and one straight, one slip eighteen pools." Although this riddle seems simple, the local people have not found a place that matches the riddle, so for thousands of years, basically no one has been able to find the gold left by Sun Erniang. But even so, many outlaws still did not give up the road of treasure hunting, such as the famous warlord Sun Dianying in the Republic of China period, after hearing about this incident, he also sent troops to dig near Maling Mountain for several days and nights, but there was no gain, and he had no choice but to return empty-handed.