Prompt: Legend has it that a long, long time ago, a thousand-year-old real dragon lived in the Dragon Pool of the Dragon Pool Temple, where it practiced monasticism. A moonlit night, the young monk got up to go to the toilet, heard the sound of the water stirring in the dragon pool. He came close to peep, only to see a long ten battles of the dragon swimming in the pool, and from time to time spit out a night pearl, emitting a burst of light green halo. This made the young monk dumbfounded and his undershirt chilled. The next morning, he informed the monks and the presiding officer, but everyone came to the pool, the water was as calm as a mirror, did not find any abnormalities. The monks thought that what the little monk said was a silly talk or illusion and did not believe it. The frightened little monk left Longtan Temple and never came back. Translated with DeepL.com (free version)