The content in this upper volume contains various dan formulas, all developed to treat the Nine Yang Tribulation, but these things are indeed quite unbelievable.
There are many more in the back, all of which are unheard-of species.
If these medicinal ingredients are combined to refine a dan formula, one can smoothly pass through the next coming Nine Yang Tribulation, and the power of some of these formulas can even allow Ren Feng to absorb all the power of the Nine Yang Tribulation.
Ren Feng furrowed his brows and continued to flip through. Besides these, there were some arrays, but they were very incomplete and marked as hearsay, unreliable.
Among these arrays, the Heaven and Earth Spiritual Qi converges. If one could undergo the Nine Yang Tribulation within the Heaven and Earth Spirit Array, they could absorb the Spiritual Qi within the array to resist.
Of course, this is all too elusive.
