Harry Potter and the Order of the Phoenix - Pg 39

   'Back?' whispered Aunt Petunia.   She was looking at Harry as she had never looked at him before. And all of a sudden, for the very first time in his life, Harry fully appreciated that Aunt Petunia was his mother's sister. He could not have said why this hit him so very powerfully at this moment. All he knew was that he was not the only person in the room who had an inkling of what Lord Voldemort being back might mean. Aunt Petunia had never in her life looked at him like that before. Her large, pale eyes (so unlike her sister's) were not narrowed in dislike or anger, they were wide and fearful. The furious pretence that Aunt Petunia had maintained all Harry's life - that there was no magic and no world other than the world she inhabited with Uncle Vernon - seemed to have fallen away.