C23

It was already half an hour before he stepped onto the dark corridor again.

A large iron gate appeared in front of his eyes. Due to the weak light, he could vaguely see a cross shaped hole on the gate.

This time it was McGonagall who stepped forward and took out another angel badge from her collar.

Luckily, Han Wenyue's eyes were sharp, and she was able to see the badge in McGonagall's hands