It's Grimmauld Place number 12, not 13. Otherwise people wouldn't accept the mistake that had made house number 11 be beside number 13, since they can't see number 13. Then it would be house number 12 and 14. Check the book, if you're in doubt. Can somebody fix it please? 11:30, August 13, 2011 (UTC)Christina

Sorry, just realized my mistake. That's what happens when you use random page, and don't read the text throughout. :) 11:32, August 13, 2011 (UTC) Christina