They had started at Kings Cross, where Hermione had already been waiting for them. The muggleborn witch had helped them navigate Central London. She had told them about surveillance, little mobile devices that could be used to reach anybody at any time and the advantages of public transport. They had been surrounded by people all afternoon – quite rude people, now they thought about it. The twins had stood mesmerised in front of something called "television'. Their dad had a similar box in the shack, but no pictures ever showed up on it. Fred had become very still when they had seen "news" about catastrophes, wars, sports events and countless other things they could not understand. Apparently, muggles were a violent bunch, and Hermione had warned them that they could never, under any circumstances, pull out their wands. Learning about firearms and "army knives," they could certainly understand why. A wand could be a weapon, and apparently, muggles were eager to defend themselves against any perceived threat by all means necessary.