After all, very few secrets of the Sealed Heaven Land circulated in the Cultivation World. Yet every cultivator, magic beast, demon beast, and demigod beast who entered the Sealed Heaven Land had secret keys on them. Otherwise, how could they have gotten in?
And there should have been quite a few who could venture this deep. After all, reaching the Chaos Immortal Pool area required passing through at least two or three Heaven-Sealing Gates. With only one or two secret keys, they certainly could not have gotten in.
Thus, the deeper they ventured through the Heaven-Sealing Gates, the higher the cultivation of the cultivators and other beings they encountered. Each Heaven-Sealing Gate had more than one keyhole. If they could not find the correct secret key that matched the recess, they could only use their keys to try other areas...
That meant taking quite a few detours before finding another Heaven-Sealing Gate in the next area, then finding the secret key that matched the correct recess in a Heaven-Sealing Gate to reach the area containing the Heaven-Sealing Source.
So they needed to collect as many secret keys as possible, since that would allow them to take even more detours...
The Glacier Immortal Emperor and the Heaven-Sealing Ape had come out to hunt down and kill the cultivators and other beings who had entered this area.
After all, according to the Heaven-Sealing Ape, although the Heaven and Earth Spiritual Energy and the aura within the Sealed Heaven Land were astonishing, there were actually very few places inhabited by powerful beings. The main danger came from conflicts between cultivators from outside. Killing them would therefore allow the pair to seize their secret keys while reducing the number of competitors...
After all, anyone who could venture so deep into the Sealed Heaven Land