Fang looked closely at that spot, but couldn't find any other traces of battle aside from that hole. In fact, he found the traces of the battle left by William to grow the most around that hole.
It felt as if William made a last stand there, and that didn't make any sense to him. He knew these monsters came from underground. And that meant William decided to take shelter deep down, where the monsters took as their home and playground.
"He isn't an earth based master, not primarily at least," Fang watched William fight before, and he was sure he was a lightning based master like himself. And that made him more puzzled and far more curious.
As the team progressed towards that hole, Fang also moved quite close. They progressed slowly amidst the swarms of monsters coming at them, and during this William was facing up something new.