Fang Zhou understood the art of Qimen Dunjia, he realized why the Sword Box was the sect treasure of the Kunlun Ruins Hidden Sect, rather than the Xuanyuan Sword or the Sword Control Technique.
Qimen Dunjia was not purely a spell but a collection of secret manuals that included astronomy, geography, war, climate, divination, arrays, numerology, spells, feng shui, and more.
The content in it covered everything from the universe to dust, and one might find it difficult to master in a lifetime.
The art of Qimen Dunjia was more like the name of a collection, and the Sword Box was clearly the library of the Kunlun Ruins Hidden Sect, where successive Sect Masters could write their acquired knowledge into it.
Fang Zhou happened to be the hundredth Sect Master of the Kunlun Ruins Hidden Sect. It was the blood and efforts of the hundred generations before him that created this Sword Box.
