Senior Dong turned in an instant, his eyes widening at seeing a figure who wasn't even facing him, standing in a relaxed pose with both hands behind his back and seemingly studying the monolith.
"W-Who are y-... no... h-how?", Senior Dong's mind was struggling to push through all the questions that instantly sprang in his frenzied, panicked mind.
"How I got in? I followed you in until the inner door of this Vault, and then came inside with you when you opened it", Wu Long calmly explained as he turned around to face Senior Dong.
"I-Impossible! Th-there are Ancient Formations outside of here!"
"Haha, I wonder what your reaction would be to the guy who followed after me", Wu Long chuckled.
These formations were certainly powerful, but only as much as it was possible within the Boundless Profound World.