"Impossible!" Lin Pei barked.
"Why is it impossible?" Ke Liang retorted, "The door needs to move inward for the grooves on both sides to catch the pulley's axle and lift it up. Once the chain breaks, the door springs back to the wall, and without a point of leverage on top, it's almost impossible to open from the inside."
"I don't believe it!" Lin Pei lifted Shen Xin up in a fit of rage, pressing the sword against her neck and pushing her forward, "You go in front, I want to see it with my own eyes!"
Ke Liang wanted to say something, but Gu Yu suddenly grabbed his arm and asked Lin Pei, "Is the door towards the town also closed?"
"What did you say?!" Both Ke Liang and Wang Chaoqing exclaimed in unison.
"No wonder!" Gu Yu started to laugh, "I thought it was strange before. We could still see outside from this door when Xu Huo opened it. But when we got here, the door was closed and the chain broken. It turns out it was because of you."