Once upon a time, there was an old lady who was widowed in her early years and had three beautiful daughters by her side. One afternoon, the old lady came back from going up the mountain to collect firewood. She accidentally fell into the ravine and broke her leg. She kept calling for help, but no one saved her. It was getting dark, and the old lady was very anxious. Just then she heard a voice say, "Old man, why are you sitting alone in the ravine?"

The old lady looked around and saw no one. She was very scared and her whole body was shaking. "Are you... are you a human or a ghost? why can't I see you?" she asked.

"I'm neither a human nor a ghost, I'm a python." As soon as I finished speaking, I heard a "rustling" sound next to me, and then a big python as thick as a cow's leg emerged from the grass, making the old lady shiver non-stop.

"Old man, don't be afraid, I won't hurt you."

"Then... then what do you want to do?" The old lady still kept shaking.

"I'm here to save you!"

"Are you here to save me?" The old lady was puzzled. "Why do you want me?"

"I know you have three beautiful daughters. If you promise to betroth one of them to me, I will heal your legs and send you home."

The old lady thought that this place was deserted, and if she did not agree, she would have to wait for death here, so she agreed to the big python's request. The big python found some herbs, chewed them up and applied them to the old lady's legs, and then asked the old lady to tear a piece of cloth from her body and wrap her legs. After a while, the old lady's legs stopped hurting. The big python asked the old lady to ride on her and sent her home.

"Old man, please fulfill your promise and give me one of your daughters! If you don't keep your word, don't blame me for being rude!" The boa constrictor looked at the old lady motionless and said.

The old lady looked at the terrifying python and the long tongue and whiskers, and did not dare to refuse, so she could only say, "Please avoid waiting, let me ask my daughter to come out and ask, to see who is willing to marry you."

The eldest mother called the three daughters out and told them what had happened before and after, and then said, "Daughter, it's not that Mom is cruel to let you jump into this fire pit, Mom can't help it! Think about it, three sisters, who is willing to marry a python?"

As soon as the old lady's voice fell, the eldest daughter shouted: "No, no, no! Who wants to marry a python!" The second daughter also said loudly: "No, no, no! Who dares to marry that ugly and scary thing!"

Seeing that her sisters were unwilling to go, the third daughter was worried that her family would be retaliated by the python, so she thought for a moment and said, "Mom, for you and your two sisters to live a safe and stable life, I am willing to marry the python." After saying that, she shed tears of sadness.

The old lady called the python out and replied to the python. That night, at the python's request, the third daughter married the python.

The next morning, the python was about to take the third daughter away, and the mother and daughter hugged their heads and cried inseparably.

The python took the third daughter into the deep mountains and old forest, and then took her into a cave. The third daughter followed the python in the dark cave, walking, anxious and afraid, and tears could not help but flow down. Suddenly, the cave was suddenly bright, and a golden palace appeared in front of her. When she turned around, the terrifying python was gone, and standing behind her was a handsome young man in gorgeous clothes. The third daughter was astonished and asked:

"Ah, what the hell is going on?"

The young man answered, "Girl, I am the snake king of this area. I heard of the beauty of your three sisters, so I decided to get one of you. Now, my wish has finally come true. Girl, I have countless gold and silver in my palace, endless satin, and endless rice noodles. Let us love each other, share glory, and grow old!"

Hearing the words of the Snake King, a warm current poured into the heart of the third daughter. With a sweet smile, she took the Snake King's hand and walked towards the golden palace.

The third daughter and the serpent king had a happy newlywed life. Because they missed their mother and sister, they bid farewell to their husband, went back to their parents' home to visit their mother and sister, and told their mother and sister about their happy life after marrying a python.

After hearing this, the two sisters were very envious of their younger sister, especially the eldest sister, who regretted it: "Alas! I blame myself for being too stupid. If I agreed to marry a python, shouldn't I enjoy the prosperity and wealth of the third sister's family today?" After thinking about it, she finally made up her mind: "Yes! I want to marry a python too!"

After the third daughter left, the eldest daughter also carried the basket into the mountains. In order to meet the python, she specially picked the grass and walked in the deep forest. She kept looking and looking from morning to evening, from dusk to dawn, and finally found a python in a bush. The python was sleeping.

The eldest daughter gently put the python into the back basket, and then happily carried the heavy python back. On the way home, the python in the back basket woke up and stretched out its long tongue and whisker to lick its neck. Not only was she not afraid, but she was happy in her heart and said to the python, "Hey, don't be too busy making out, let's go home and talk about it!"

Back at home, the eldest daughter put the python on her bed and went to cook. After dinner, the eldest daughter said to her mother, "Mom, I also found a python, and I will marry her tonight! From now on, I can also live a rich and comfortable life!" After saying that, he went into the bedroom and slept with the python.

For her daughter's reckless behavior, the old lady could not guess whether it was a blessing or a curse, and it was not easy to interfere. Seeing that it was getting late, she fell asleep.

Not long after the old lady lay down, her daughter's voice came from the bedroom of her daughter's folklore: "Mom, it's your thigh!"

The old aunt thought it was a newly married couple playing around, so she didn't say a word.

After a while, the eldest daughter shouted in a trembling voice in the bedroom: "Mom, it's your waist!"

The old lady couldn't understand what the eldest daughter meant, and she didn't move.

After a while, her daughter's miserable voice came from the bedroom: "Mom, it's up to my neck!" Then there was no sound.

The old lady felt that something was wrong, so she hurriedly got up and lit a torch to check. She saw that the terrifying python had swallowed her eldest daughter, leaving only a lock of hair exposed!

The old lady was sad and anxious, but she couldn't think of a way to save the child. In the end, she had to reluctantly set her thatched hut on fire and burned the python with fire.

The next morning, the eldest mother found a few unburnt bones of her daughter in the ashes, dug a hole with tears in her eyes and buried them. Then she said, "Daughter, it's all because you are too greedy! That's why it ended so tragically."