Those were all very good questions that Ianto was unsure he really wanted the answers to. Ianto was silent for a few moments, not keen to test out any kind of theory in another mirror, but knowing it was probably inevitable if they wanted to get to the bottom of this.

"...There's another one in the loo downstairs, and in the other shower. And another in the foyer." He said it in the same hesitant tone of voice he'd so often heard in horror movies when the plucky teenagers were about to open the door to the haunted house. It was the same tone of voice Gwen used whenever she dared to suggest that Tosh might have gotten something wrong.

Tosh. Now there was an idea. "Maybe we should call Tosh. God knows what kind of tech she's hoarded by now. She could run tests," he suggested hopefully.