¿Quién establece qué es real y qué no?
"-It is real, isn`t it? It`s not a joke? Petunia says you`re lying to me. Petunia says there isn`t a Hogwarts. It is real, isn`t it?"
-It`s real for us, -said Snape.-Not for her. But we`ll get the letter, you and me.
-Really? -whispered Lily.
-Definitely, -said Snape..."
"-Tell me one last thing, - said Harry. - Is this real? Or has this been happening inside my head?
-Of course it is happening inside your head, Harry, but why on earth should that mean that it is not real?"
Si esto es la realidad, por favor, enviadme mi carta de Hogwarts.