After opening the gate, step on the square in front of the three sheep in turn (132 from top to bottom) and the north gate will open. Right-click the question mark to enter the hidden level after the end of this level: the crossroads, which depicts Karl Faschi leading the blood elves out of the Dalaran dungeon, blocking Marshal Gareth's pursuit, and using Kel 'Thuzad to summon Archimonde's portal to escape into outland. Similar to the watchtower guard mode in RPG games.

In addition: this level is an optional task (is it called the exorcist's ghost? Kill all the exorcist ghosts hiding behind the magic door, and the items obtained can be merged into the exorcist ring. Like the books in the library before, the magic door needs to be opened by stepping on two magic symbols of the same color.