Author's Note:
Voldemort's curse also made Harry Deaf, how does he deal with it?
This fanfiction is unique. The story is the same as J. K. Rowling's, but the way that Harry behaves is different. And this is not a continuous story, but a set of scenes chosen to illustrate how DeafHarry would behave differently.
The first scene is short, more is coming soon.
Going to the zoo
"Bad news, Vernon", she said. "Mrs. Figg's broken her leg. She can't take him." She jerked her head in Harry's direction. Realizing that she was talking about him, Harry scrambled to switch on his hearing aids.
It hadn't been until Harry had started school that anyone had noticed that he was Deaf. The Dursleys simply thought that Harry was thick, and Vernon liked to joke that even Grunning's drills couldn't get into Harry's head.
For a while the school believed the Dursely's story that Harry was mentally retarded. But when Harry showed flair in Math his teacher insisted, despite the Dursley's protests, on taking him to an audiologist. A sound test had confirmed that Harry was Profoundly Deaf and he had been issued with hearing aids.
With Harry growing fast his ear molds no longer snugly fit his ear. Vernon dealt with the whines and whistles of Harry's hearing aids in a brutal manner: Harry was forbidden to wear his hearing aids at 4 Privet Drive. But since Petunia was obviously talking about him Harry decided it was worth taking a risk.
He switched on his hearing aids on time to hear his aunt say "Now what?"
Harry didn't bother to turn his head to see Vernon's reply. Years of frustration trying to lipread Vernon's big, droopy moustache had taught Harry that there was no point, and Harry didn't want to miss what Petunia said next.
"Don't be silly, Vernon, she hates the boy", and after a pause Harry caught her say "on vacation in Majorca".
Harry's brain scrambled to work out what was happening. They were obviously talking about him, but why? Then it twigged, they were trying to find somebody to take care of during Dudley's birthday celebrations. Harry momentarily wondered what had happened to that old woman who usually looked after him who reeked of cabbage and forced him to look at photographs of her cats. Harry had never picked up her name.
"You could just leave me here," Harry put in hopefully (maybe he could sneak a go on Dudley's computer).
As per usual, Mr. and Mrs. Dursley acted as if he hadn't said anything. Just as Harry couldn't understand Vernon, Vernon couldn't understand Harry. Despite the best efforts of his English Teacher Harry's speech was thick and you had to pay attention to understand what he said. Rather than give Harry this careful attention Vernon behaved as Harry never said anything.
"I suppose we could take him to the zoo", said Aunt Petunia slowly, "... and leave him in the car."
In the periphery of Harry's vision he saw that Dudley was pretending to cry. Harry clenched his lips in frustration for it was impossible to lipread Dudley when he was crying and so he couldn't know what false charges that he needed to defend himself against.
Harry was preparing himself to deny whatever was going to come next when Dudley stopped crying, Petunia left the room, and after a few beats returned with Piers and his mother.
Half an hour later, Harry, who couldn't believe his luck, was sitting in the back of the Dursley's car with Piers and Dudley. Noone bothered to tell Harry what was happening, and so he had no idea that they were on the way to the zoo for the first time in his life.