Following the green light with his gaze, he looked at the main body sitting cross-legged within, now transformed into the appearance of a child.
The main body's eyes were half-closed as it sat cross-legged inside the furnace. From its time in Quicksand Land until this very moment, its posture had not changed in the slightest.
If not for the occasional rise and fall of its chest, Su Shi'er would have thought the main body had completely lost all signs of life.
"Back when my cultivation realm was still shallow, I once used this Heaven and Earth Furnace to temper the Spirit Devouring Rat."
"Altogether, it had not even taken an hour! Yet since the main body entered the Heaven and Earth Furnace, a hundred days had already passed."
"The green light has yet to fade. Is that because the main body's cultivation has reached the Out of Body stage?"
"But... over these years, I have also used the Heaven and Earth Furnace to attempt tempering quite a few demon beasts. Aside from the Spirit Devouring Rat back then, every subsequent demon beast failed without exception, yet they all shared the same trait."
"That is, every living thing that failed had its essence, qi, and spirit exhausted in an extremely short time, leading to death."
"The main body changed from an adult form into its current childlike appearance, which also proves this point. But with the Heaven and Earth Furnace's overwhelming power, the main body's own essence, qi, and spirit should never have been able to last this long, should they?!"
His gaze swept repeatedly over the main body. Su Shi'er narrowed his eyes, his face filled with confusion.
Over the years he had possessed the Heaven and Earth Furnace, he had carried out no shortage of experiments. He had tempered