Kinda makes you wonder if the wall had a hidden entrance this whole time. [He watches that movement from the corner of his eye, noticing the way the keys move. He wants to ask what they're for but he's not sure how to bring it up without it seeming random.] If there is a right key though...maybe there's a way to make copies or something so we can have ways to get in and out, too. Without the Bridge's help, I mean.