Fortunately, Turtle Taoist was a turtle-type demon beast by nature. When it came to slaughter and offense, he might not excel.
But in terms of defense, he absolutely surpassed demon beasts and cultivators of the same realm.
Moreover, Su Shi'er had deliberately suppressed the power of his spells and secret arts while practicing them.
Several successive waves of formidable force struck Turtle Taoist, yet failed to shake him in the slightest.
Passing through wave after wave of force, Su Shi'er entered the formation atop the mountain before he even reached the summit.
"Hmm? Why has he come?"
Su Shi'er, who was practicing spells and secret arts, immediately sensed the changes in the formation.
"Body Integration stage? His cultivation has broken through again as well?
"If so... doesn't that mean there's a chance to figure out a further method of controlling the Heaven and Earth Furnace?"
Noticing Turtle Taoist's current cultivation level within the formation, Su Shi'er's gaze immediately fell on the Heaven and Earth Furnace not far away.
During these years of secluded cultivation, he had left the Heaven and Earth Furnace to one side and had not put it away again.
The reason was simple enough.
On one hand, he still had quite a few resources that had yet to be refined.
On the other hand, the power of heaven and earth drawn in during his cultivation could also gradually scour the Heaven and Earth Furnace.
Although his control over the Heaven and Earth Furnace remained extremely limited, he naturally would not refuse anything that could make it stronger.
Coming back to his senses, Su Shi'er raised a hand and immediately put away the Heaven and Earth Furnace.
With another wave of his hand, the formation atop the mountain rapidly changed.
Turtle Taoist had only just barged into the