As a courtesy, Lin Mu waited for several seconds for someone to respond to his arrival.
"Hello?" His voice echoed through the cavern but no answer came.
Lin Mu sighed. "Of course."
He already understood what he needed to do. Lin Mu took out his newly issued disciple token and held it before the gate. For several seconds, nothing happened. Then a wave of energy emerged from the massive doors.
The energy washed over Lin Mu's disciple token as the token glowed. Several runes upon the gate activated, then hundreds more. And soon, the entire cavern began trembling. Seeing this Lin Mu instinctively stepped backward.
The three hundred meter tall gate groaned as stone scraped against stone. Lin Mu raised his head, expecting the colossal doors to slowly swing open.
Instead... A tiny section at the bottom of the gate lit up.
Click.
A perfectly ordinary, human sized door opened.
