[Oh, that's a voice he recognizes!! Hell YEAH no spooky ghosts this time... He's free... He immediately starts trotting at a faster pace in the direction the voice seems to be coming from, keeping a hand on the wall as he goes so he doesn't fall off some random ledge and die about it.]

Ah, Kaeya-san! It's me! Vi-san sent us down here to come get you out. You're in the mausoleum - did you really just wake up here?