It was certain that the area around this cave, situated at the very center of Lake Heart Island, had the densest Heaven and Earth Primordial Qi. It must be the closest point to the Array Hub.
This cave was just a naturally formed cavern of ordinary rock. Chen Cheng had searched it carefully but found nothing out of the ordinary, nor any passages leading underground.
The Cave Mansion's Array Hub would periodically release the Array's power, taking in and expelling the Heaven and Earth Primordial Qi it absorbed from the outside world. When that happened, a strange phenomenon would naturally manifest.
Therefore, Chen Cheng wasn't in a hurry. He would first occupy the cave and wait patiently.
After finishing his roasted Demon Beast Meat, Chen Cheng went out again. He casually captured two Tier Four Demon Rats and tossed them at the cave's entrance.
These two Tier Four Demon Rats were the size of calves and sported sharp fangs and claws; they were certainly no docile creatures.
