After the records of Immortal Gu Formulas came the Mortal Gu Formulas.
There were even more Mortal Gu Formulas, packed densely together, and even Fang Yuan felt alarmed as he read them.
What caught his attention were the Mortal Gu Formulas for Day Gu, Moon Gu, and Year Gu.
Following these Mortal Gu Formulas, Fang Yuan could completely gather mortal materials and refine Mortal Grade Day Gu, Moon Gu, and Year Gu himself.
"With this, not only can I purchase these mortal Gu in Yellow Treasure Heaven, I can also refine them myself. This will undoubtedly greatly shorten my preparation time. But refining them myself is not worth the effort; it would be better to commission those hairy men of Lang Ya Sect to do it."
Thinking of this, Fang Yuan furrowed his brows almost imperceptibly.
His relationship with Lang Ya Sect had already grown cold. If he wanted to borrow Lang Ya Sect's strength, he first had to ease their relationship.
Setting these matters aside for now, Fang Yuan continued examining Hei Fan's True Inheritance.
After the Immortal Gu Formulas and Mortal Gu Formulas came some incomplete Gu Formulas.
Their completion levels varied. Some reached as high as ninety percent, yet were deadlocked at a difficult hurdle. Others were only ten or twenty percent complete, having just been drafted.
"Immortal Gu 'Before'?" Fang Yuan's gaze paused.
Among the incomplete Immortal Gu Formulas was the formula for Before Gu, with only fifty-seven percent completion.
Before Gu and After Gu were corresponding Immortal Gu.
Clearly, Hei Fan had not only possessed After Gu during his lifetime, but had also coveted Before Gu.
Unfortunately, he had failed until his death.
Further on were Hei Fan's records, containing his insights and experiences in deducing various Gu Formulas. He explained the hardships of deduction,