I was back in the vault room, and the tumblers were singing

I’m standing in that old bank vault — same cold concrete, same hum from the cooling unit — but the tumblers aren’t metal. They’re made of glass, and each one has a voice. Not words, just tones, like a choir of wind chimes tuned to different keys. I don’t remember how I got there, only that I have to open it before the lights go out. And when I do… the door doesn’t open. It just starts whispering my name. I wake up with my fingers still curled around an imaginary key. Still feel the weight of it.