"BOOM!" A massive sound reverberated as Zhou Tian gave a full-powered kick to the hillock. To his surprise, he was sent flying back amidst an explosive sound.
"Damn, it's no simple feat!" Not just anything could serve as the foundation of a space. Besides needing certain properties, the foundation must also possess a certain degree of solidity. Otherwise, if it broke down too easily, even though it could be used as the foundation for a space, no one would put trust in it unless absolutely necessary.
The foundation of the Ancient Ruins Space where the Elemental Spirits resided was unconfirmed by Zhou Tian. However, the fact that he had fought atop the Sacred Mountain for so long without causing significant damage to it suggested that the foundation of that Ancient Ruins Space was undoubtedly far from straightforward.
