```
Time flowed gently by.
In the valley, the verdure faded to yellow and then revitalized to green, over and over again.
Within the cave mansion.
Aaron once again spat out a mouthful of vital blood, sacrificing it to the 'Mystery Cocoon Gu'.
By this time, the turtle shell had shrunk multiple times, turning into a black silkworm cocoon, its surface etched with countless mysterious runes.
Only now was the true form of the Mystery Cocoon Gu revealed!
And to have refined the Mystery Cocoon Gu to this extent, Aaron had already sacrificed at least a million years of his lifespan!
"Such a method of sacrifice, perhaps only a Primordial Spirit Scatter Immortal could endure it, right?"
