You're going to look at me and call it 'Age of Aquarius bollocks,' but it worked for Hei. We have to force it to break with our minds. Imagine a wall around Manchester, that's the best way to do it. It's psychic, so I can probably get something to amplify it from one of the Doctors or the Twins. It's a lot of effort but I know we can manage it. We should try to spend as little time with the Master as we can to help it reverse.