Heath's heart tightened and he immediately activated his invisibility spell. At the same time, all the magic power in his body entered a state of alert.
"What, what is it?"
Nina also put away her usual cheeky smile and looked around nervously.
Heath looked around and said warily, "I'm not sure, but it's definitely not something that can be easily provoked."
With his current strength, it was not an exaggeration to say that he was only a step away from becoming an intermediate-rank Wizard. However, when that voice rang out, he could still feel his heart palpitating. From this, one could see how terrifying this thing was.
Rumble... Right at this moment, a rumbling sound suddenly rang out from afar.
"What's that sound?" Nina asked in a panic.
Before she could finish her sentence, there was a sudden tremor on the ground. The tremor was getting stronger and stronger, as if an earthquake was about to hit.
