Harry Potter But AU?

Harry's POV

It was time to meet mr. Greengrass and Harry wasn't willing to be late.

Luckily he had help in the name of Dobby, a quick popping with the house elf, and he arrived.

It took the door opened as he knocked, something that should be done by the house elves if he was not mistaken, but could also be a rune scam.

As he walked in he could hear footsteps running above him and a little girl that looked like a little copy of Daphne, only much paler and black with gray strikes hair.

"Hey, my name is Astoria, Are you Daphne's boyfriend? If so call me Tory, as we will be brother and sister when you two marry!"

The girl had so much energy and questions Harry wouldn't have been surprised to find she took ecstasy.

"What is your house in Hogwarts? What is your favorite class? How did you and Daphne meet? Aren't you afraid my father will kill you for stealing his first born? He once told us...

When she finished all her questions he started answering

"Hey, I'm Harry, no I'm not Daphne's boyfriend, I came here to see if your father would like to hire me, which is why while I'm a little bit nervous he would refuse but I'm not scared. I'm a Slytherin, my favorite...."

By the time he finished answering all of her questions, both Daphne and their father were already there.

"... yes you do. Hello mr. Greengrass, Daphne."

"It's Lord Greengrass." The middle aged man said with a tone of a superior talking to a subordinate, a way of looking at their deal Harry wasn't willing to submit to.

"I am sorry, mr. Greengrass. It won't happen again, mr. Greengrass."

He could see anger flashing through the man's eyes before the coldness returned.

"Very well, as we might work together, you might as well call me mr. Greengrass." He then looked at Astoria "Have you finished your Latin homework?" The little girl looked like she wanted to say that she did, but with a look at the glint in her father's eyes she told the truth "I didn't, but can't I do it later?" "No, go do it now!" With eyes cast down Astoria walked back upstairs. "Let's sit and talk about how much you accomplished in the last year, how would you go to cure the curse and exactly what is the theory on which you base your cure on."

After sitting on the couch Harry started the explanation he prepared for the wizard, an explanation almost identical to the one in his book.

"Think about the body of every living being in the world as a unique spell, and just like how every spell is built from arithmancy and runes so does the bodies. The reason we look like combination of our parents is that we are a combination of half of our father's construction plan and half of our mother's. Do you understand?" The man nod his head slowly "My plan is simple in theory- we find out the part of the construction plan which isn't right and change it to the right one. Any questions?" He asked like a professor, and as Harry expected, the older man had questions

"A couple. First of all, do you have any proof?"

"Of course, can I assume that the trace won't activate in the house?" Harry said and after seeing a nod took his wand out.

Harry didn't really care as he wasn't planning on using the wand but to do the spell wandless and see if his theory about the mind taking the explanation that makes the most sense as the right one.

"I'm about to do a charm I invented on Daphne, there are no negative consequences nor will she feel anything."

With another nod Harry cast his spell with loud voice while doing a swish, swirl, swish and flick and blocking his magic from reaching the wand

"ex visu vitam vocatio"

A shot of light came from Harry's left eye and a DNA hologram showed up, yet the father and daughter didn't seem to think there was anything extraordinary about the situation except for the hologram.

'Success'

Basitill's POV

If he was honest, Basitill didn't have any hope about the meeting today.

In fact, on the subject of curing the blood curse he lost hope long ago, just after his wife's funeral.

Before his wife's death he went to all of the healers he heard of, and in every possible country, but the only one that could even partially explain what exactly was this curse was an old healer from Uagadou who clarified that the curse was one that settled inside the very being of his wife's ancestor, and the reason why her descendants can get it from her. Even he had no idea how to approach the elimination of the course, and all the other healers has no idea how to explain the curse could be passed on.

So yes, he has no hope about today, no hope about his eldest daughter's research group, and no hope for his youngest daughter to out live him.

But he knew Daphne needed hope, she needed to know she did everything she could to save her sister, that he did everything he could to save Astoria, otherwise she would never forgive him, and he would lose not one daughter but two.

Which is why, when she wrote him a letter that she have found someone who can save Astoria but didn't have time for the project and needed a device for more time, even when he knew that person was only trying to get Basitill to give a time turner he didn't refused, but as he was fully aware it was impossible for him to get his hand on one, he still promised to give one as long as he could see results, even bringing out his fast reading glasses for a show of sincerity.

All of this could show you two things-

1) Basitill would do anything for his daughters.

2) He has no faith the boy has a way to save Astoria.

Which is why the situation is so shocking.

A boy, which is no older then 13, one that managed to raise his ire with the first sentence he said when they met, managed to not only bring forth the same theory the old healer brought, but an idea for solution!

Of course, ideas without practical ability to make them reality worth nothing, and he was conned too many times while trying to save his wife, which is why he asked the boy to show proof, to which the boy answered by taking his wand out and casting a charm of his own invention! A 13 years old! Invented a charm that can show a person's so called construction plan! The boy is a genius! If his magical power was on the strong side he would one day surpass Dumbledore, too bad for him it seemed to be on the weak side, 'but a good thing to me' Basitill thought, as the boy might have an actual chance in curing Basitill daughter.

"... which is why I need more time to accomplish it."

He seemed to lose track of the conversation but as he didn't want to make himself look inattentive, and impolite. Instead of saying he wasn't listening, he said

"I didn't understand it entirely, can you repeat it, mr....." it was at that moment that he realized he never asked for the boy's full name, even in conversations with Daphne about the boy, he called the boy her schoolmate, while Daphne either called him a he or Harry, and he can't call the boy Harry without permission.

"Harry Peverel." The family name ringed a bell but he hasn't managed place it.

"I will try to simplify the explanation," mr. Peverel said nicely

"The so called construction plan of our body is called Deoxyribonucleic acid, but we will call it DNA by it's initials, and while every person's DNA is unique, it is mostly the same, as we are similar. Think about it like Incendio and the Bluebell Flames Charm, and Fiendfyre. While different spells their basis is the same, fire, which would make their atithmancy to show resemblance and the closer those spells are, the more similarities you would see.

So a plant and a person's DNA would look very different, while monkey's DNA would be much more similar, and the differences between one human from another are less then one percent, all of this means, as I said earlier, that all we need to do is find the specific DNA base that make your daughter sick and replace it with healthy base so the contraction from that point onward would be healthy, but, right now I only managed to minimize the number of bases to 36 million and"

"36 million???? How many bases are there?"

"As I said, there are about 3 billion bases."

The tiny bit of hope that was growing again started dying but than Basitill heard the boy say "which is why I need more time to accomplish it, but I can have ways to speed it up."

Basitill now understood, after all, while he wasn't a brilliant wizard, nor was he a genius healer, Basitill was an excellent businessman. The boy was trying to get an upper hand to negotiate, the only thing he didn't realized is that Basitill would agree to all of his demands