Jack nodded, tucking his holster into his belt as well, having similar thoughts about not being able to go around unarmed. "So...it was just a window. Or an image. From here to wherever they were, but not back." He nodded to the door, alert and on the defense, something which he'd never thought he'd have to be here, not in their new home and all. "After you. We'll try another mirror, see if it does the same thing..." He wondered, vaguely, if it would make a difference whether he looked into it first or not, or whether he'd even be able to see the same thing as Ianto, but. Well, they'd try, at least. They had to do that much.