In the dim passageway, Lu Xuan walked slowly.
Arriving before a Stone Cave, he followed the Old Fox's instructions and used Spiritual Power to open the restriction outside the Stone Cave. A fierce Demonic Beast lunged out viciously, only to be dragged back into the depths of the Stone Cave by the rune chains on its body.
By now, he had long since grown used to these fierce beasts' bluffing thunder with hollow bellies, their strong outsides and dried-out insides, and he entered the Stone Cave with perfect composure.
All the fierce beasts imprisoned in the forbidden ground had not only the restriction array formation outside the Stone Cave, but also all kinds of Magic Tools on their bodies that sealed their demonic power and limited their movement. Of their full strength, not even three-tenths remained, and Lu Xuan could handle them with ease.
"Be good. Let me draw a little blood."
Inside the Stone Cave was a giant snake, pitch-black from head to tail, with a pair of heads that stared fiercely at Lu Xuan.
When it saw the specially made blood-drawing Magic Tool in his hand, its massive body could not help trembling, and it obediently lay flat on the ground.
The sharp Magic Tool easily pierced through its Black Scales, and a fountain of blood gushed out from within, quickly filling the tool.
After Lu Xuan finished drawing blood, he took out a bottle of solvent suffused with a strange smell from his Storage Bag.
This was a special solvent the Old Fox had given him. It could fuse all kinds of Demonic Beast blood and purify them.
The giant snake's blood was blackish red, with extremely potent poison. Just smelling it gave one a dizzy, swollen-headed feeling.
When he poured it into the strange solvent, the