Wei Wuxian takes the lantern from him, holding it aloft so they can both see where they're going. He's pondering the best way to open the mouth from the inside, too. Given the size of the creature, it must be gargantuan but he can only guess until he sees for himself. In the meantime, he walks somewhat awkardly at Lan Wangji's side, listening carefully for more insects or other people who may be trapped in here, too.

"Did you see anyone else in here? I haven't. Once we've secured the way out, we should search where we can to make sure no one's left behind."

He's fairly sure they're the only ones in here but he can't leave without checking first in good conscience.