Hogwart's Rules Realities and Reputations.

As Harry approaches the pedestal the book starts to speak. "To whomsoever writes in this book it will come true, the only stipulation is it will not kill." Harry finished his walk to the book and it opened to the cover page Hogwart's Rules Realities and Reputations. He felt giddy if this was true it could be the answer to many of his problems but how to test it.