For example, the North and South Sect Origin that Zhang Fan cultivates is derived from the Five Elements Mistaken King, one of the Nine Great Inner Elixir Methods.
And the secretly transmitted Heart Demon Guide, is derived from the Divine Demon Holy Embryo, also among the Nine Great Inner Elixir Methods.
...
Each of these techniques is supremely rare and difficult to cultivate, and all are treasured by Zhenwu Mountain.
Likewise, after the Jiazi Demon-Vanquishing, Chu Chaoran obtained many techniques concerning the Three Corpses Illuminating Fate. From then on, this Living Zhenren of the current age almost never left Zhenwu Mountain again.
The Three Corpses Daoist, once the world's foremost expert, was himself an immense treasure; after his fall, Zhenwu Mountain naturally gained much from it—there was nothing odd about that.
