Finding a way to break through the barriers between two realms among a thousand jade slips.
It did not mean practicing them one by one.
Often, a single glance was enough to rule something out.
So the process was still very fast.
In roughly two days, He Pingsheng finished searching through all the jade slips.
In the end, there really was one left before him.
It was a formation.
A third-grade immortal formation called the [Nine-Star World-Piercing Formation].
The formation drew on the Stellar Power of the Immortal Realm's nine stars to bore through the barriers from the Immortal Realm and open a passage to a lower realm.
Once it was opened, a cultivator with Human Immortal cultivation could be sent into the lower realm.
This formation had many uses, such as delivering supplies to one's clansmen in a lower realm!
Of course, what the Immortal Realm called a lower realm was a True Spirit World, a world equivalent to the Spirit Realm.
Once this formation was set up, it could pierce through two barriers.
One was the Immortal Realm's barrier, and the other was the Spirit Realm's barrier.
Clearly, He Pingsheng did not have the means to set up such a formation.
For one thing, the immortal formation's grade was too high, and he did not know how to set it up.
For another, he did not have the materials needed to set up the immortal formation, because setting this thing up required many third-grade immortal materials.
He had none!
But He Pingsheng thought of a way.
That was: simplification.
He would simplify this third-grade immortal formation into a ninth-grade grand array usable in the Spirit Realm.
Although the grand array's power might be greatly diminished, perhaps falling below even a tenth or a hundredth of the original formation's