Zhou Wen rode the Earth Elemental Beast and left the Founding Emperor Tomb with Ya'er.
On the way, Zhou Wen attempted to use his phone to take a picture of the Emperor Qin Sword to see if he could get it into the game. Otherwise, having the dungeon but not being able to enter was useless.
After the phone entered its camera mode, it automatically locked onto the Emperor Qin Sword. With a click, the Emperor Qin Sword vanished into thin air, and an Emperor Qin Sword appeared in-game.
However, in-game, Emperor Qin Sword wasn't its name, but 'Key to the Imperial Mausoleum.'
After Zhou Wen inserted the Emperor Qin Sword into the ancient city's door, it automatically vanished. The game's door opened and didn't close again. Even if Zhou Wen respawned in the dungeon again, he didn't need to use the Emperor Qin Sword to open the door.
