Zhang Chen held the Luminous Pearl, making his way to the bronze door, carefully examining the gap where the door met the rock. In the next instant, Zhang Chen couldn't help but curse, "I underestimated the wisdom of that ancient 'deity.' If even I can think of this problem, how could that deity not?"
He saw that the stone wall had a bronze plate embedded in it, about a meter thick. It was unclear how deeply it was embedded, but considering the deity's means, it certainly wouldn't leave any loopholes for people.
As for the junction between the bronze door and the stone wall, it depended on a large 'hinge,' as long and thick as the door itself. Though there were gaps, they were probably only wide enough for cockroaches to squeeze through.
"Unless one masters the Fox Spirit's methods, capable of Void Transformation to traverse matter, this tomb is like a Copper Wall and Iron Wall."
