They were on the last set of stairs already so Jin Wang went to the other side and hid behind the metal door. The door itself was more than 1.5 meters thick, 4 meters in length and 2 meters in width.
It stood facing the stairs but since there was nothing around it, it looked more than a little odd. It wasn't even connected to anything so how could it lead to somewhere?
Knowing the Emperor's habits Jin Wang postulated that it was a spatial gateway that led to a place he thought was secure enough to stand the test of time. That also meant there was nothing he could do to forcefully open it.
He waited as the group slowly ascended to the last step and stopped. The man wearing the same armor as Lady Natalia stepped forward, unleashing a bit of his internal energy that would have triggered any traps nearby.
And if Jin Wang wasn't the one controlling the traps himself they would have as well.