Deng Yin hinted to Zen Master Xiao Yue that the flying sword he needed to take was the Purple Ying Sword.
Before Master Changmei ascended years ago, he hid the Purple Ying and Green Rope Immortal Swords in two places in Mangcang Mountain, leaving them for his two future disciples to retrieve.
Those disciples were Li Yingqiong and Zhou Qingyun, both ranked among the Three Heroes and Two Clouds, with Li Yingqiong wielding the Purple Ying Sword and destined to be the next Sect Leader of the Emei Sect.
Master Changmei concealed these two locations using spells to hide Heaven's Secret, making them inaccessible to outsiders unless they had seen the original text like Shi Feiyang who had come from another world.
However, Deng Yin was an exception, as the Purple Ying Sword was his assigned sword which he had nurtimanced and refined for hundreds of years, making it unique and thus he knew of its location, but he did not know where the Green Rope Sword was.
