"Hogsmeade shop, mate, we weren't there." Fred waved his hand vaguely, then shrugged again. "The wards there let us know who comes in and out, set them up when we set up the tunnels just in case it got found out. Created the wards ourselves." He sounded just as proud when he said that as he did of any of the inventions he bragged about. "George is keeping an eye now, but I thought someone should come here to see if something was happening. If it is, they're not telling us about it yet."