You reach for the file as best you can.
After five minutes of fumbling, you manage to grab it!
You angle it inwards, preparing for a long session of filing.
But as soon as the file makes contact with your chains, they fall off.
One of the links is still attached to your wrist, but your hands are free.
It's weird, but you don't question it—you just want to get out of here.
You tap the file to your ankles—that chain falls off, too.
You have only two real options here:
5: Go over every square inch of the mirrors to try and find some kind of door
6: Break the glass using your file