if you've been to mugglenet, or perhaps you are very clever and figured this out for yourself, you can get behind the the brick wall! you have to find and click the bricks in a certain order, the order being 3-4-2-5-1 with the bricks from top to bottom. mugglenet has a picture to elaborate, which i am not going to do now! behind the wall there is a room. click on the fan and you will be treated with quite a surprise, although it is unknown whether this surprise is a trick, or thruth, it reveals a title which is possible for book six. this title was aso considered for book two, the chamber of secrets.