You get up and stumble to the corner, grabbing the pot as you go. It's heavier than you expected, quietly scraping against the floor as you pick it up. It
is vaugely comforting though. You hug it tightly, covering your mouth with your other hand in hopes of keeping yourself from making any further noise.
You hold that position, watching the entrance to the cell. The soft whooshing sounds are getting closer. And faster. You shiver, worried that whatever it is heard you when you picked up the pot.
The sounds stop as something large moves in front of the door.
You hold your breath, staring at the shadow it's casting into your cell. It
did hear you, there's no other possible reason it stopped
right there. You hold perfectly still, watching and listening intently for any hint as to what it will do. But there's no noise, the air sounds completely dead. If not for the shadow, you wouldn't know there was anything outside at all.
...And then it moves, walking past. The strange airy whooshing sound resumes, and you realize it's the sound of the thing's footsteps. They're worryingly quiet, considering the thing's size. Your ears are very sensitive, and yet it's still a little hard to hear.
You listen to it walking away, the sound of its soft footsteps quickly fading into the distance. Only once you can't hear it anymore do you allow yourself to look away from the doorway, your mind afraid it'll come sprinting back towards you all of a sudden.
After about a minute, you start to breath again. Your heart is
pounding. At least that seems to be helping with the sick prickly feeling. You're not finding it as hard to think anymore... though your newfound clarity of thought is focused on imagining what kind of monster that was. Now you're not just trapped alone in some awful dungeon, you're trapped alone in some awful dungeon with distressingly stealthy monsters!