Ianto hummed briefly to agree with the fruitlessness of making maps. In the Hub, he had a stack of area layout sketches which he'd long since given up using as a way to navigate around. Even his theory that there might be a pattern to it all hadn't worked out. He kept them now in storage, just in case.
"I don't think it's possible to make one that sticks. I'd suggest maybe the police station has something to do with that, except I haven't seen any spatial vortices floating around there lately."