Go back to your cell.

You grasp they keys and the chain tightly to quiet them as you run back to your cage and pull the door shut. You stash the ring in the corner with the one to your cell and push the door far enough that it looks like it's still shut and locked. you take a seat on the spartan bench, and put on your best impression of a despairing prisoner.

A pair of orcs step into the hallway, seeing the aftermath of a scuffle mostly as you found it. They start hurriedly examine the other cells, finding most of them empty. As they reach you, one of them gives a snort seeing that they still seem to have one of their captives. They grunt at each other in their guttural language a few moments before one of them runs ahead, seemingly in pursuit of whoever fought their way through here.

The other takes another glance over the mostly empty prison. You'll probably be left alone if you stay quiet, but if you have a bolder plan, now's the perfect chance to catch the Orc's attention.