Hey guys when you are at the main menu, do this:
Hold L1, and press these:square,circle,square,circle,up,down,left,right
Which translates into:
[],0,[],0,^,v,<,>

Oh!!! When you are in the game, pause and hit L1 and your health will be full again:=-)
Italy57 out-

On the third floor, next to the Griffindor Common Room is the Library.

Go in the Library and press X, circle or square on the book shelves.

Some of the book shelves when you do that will open and you can go through them.

It will lead you to a secret area where you can get beans, witches and wizards cards.

You will notice these secret book shelves because you can't climb on top of them.