In the entire Eastern Wasteland, only the One Yuan Secret Realm counted as Fifth Order.
So the moment Qing Nü measured the Spirit Energy Value, Chen Mobai guessed where this place was.
Yellow Dragon Cave Mansion!
That teleportation array could actually allow free entry and exit from this place?
Amid his shock, Chen Mobai quickly thought of the teleportation array's restriction: it could only teleport those below Core Formation.
In an instant, he recalled the experience of when he had first arrived in the Eastern Wasteland and resisted the demon beasts over at Green Light Island.
During that great tide, a demon beast that had broken through to Third Grade had suddenly appeared, destroyed the market's Grand Array outside Wind Rain Dock, and wantonly slaughtered countless cultivators.
Thinking about it now, it should have gone out from here through that Ancient Teleportation Array, then hidden itself away, cultivated to Third Grade, and organized the many demon beasts within Cloud Dream Marsh to attack, break through the market, and wipe out the Eastern Wasteland cultivators' living forces.
At this moment, Chen Mobai was also glad that the Ancient Teleportation Array could only teleport those below Core Formation.
If the Poison Dragon could also use it to come and go freely, he definitely would not have been able to grow up on the Eastern Wasteland's side.
After he told Qing Nü his guess, she also paled in shock upon learning that this was the territory of a Fourth Grade Demon Beast.
Only now did she understand why Chen Mobai was still so cautious even after Nascent Formation.
The Sky River Realm really was extremely dangerous! The two of them quickly swapped in that Top-grade Spirit Stone, and only after the Formless Puppet possessed Core Formation-level power did they feel slightly more at