Disclaimer: I DON'T OWN EITHER HARRY POTTER NOR WARCRAFT. THEY ARE OWENED BY J.K. ROWLING AND BLIZZARD (I think).

Prologue:

Harry Potter look at what was one day diagonal alley. Fel magic was still in the air after one month of the last battle. The demons were hard but with the help of no-magicals they start failing fast. It looks like they hadn't seen weapons and bombs again and to be honest, most wizards haven't either.

Now the secret is off. The no-magicals seen the wizards as the responsible and want to control them. The wizards finally saw the might of the 'muggles' and were afraid. Most of them tried to find peacefully solution and agreed to be under the no magical government, although some die-hard old school still though that they were superior to them and want to start another terrorist organization, although they don't see it like this.

And he started all of it from a book. He started it because he wasn't strong enough. Utleast, he didn't get corrupted, but when voltemort found about his new power, he make his own research and he make a deal with the devil himself. He made a deal with burning legion and Sargeras. From the most idiotic thinks he could do he summon demons in Earth.

In the start the demons were wining. Hogwarts and the whole Gringots are in ruins. Scotland was taken by surprise but after one week of their summon the no-magical totally eradicated the demon forces and the wizards manage to stop the portal. To bad Albus sacrifice himself to close it.

All started from an old book...

Flashback

Cedric was dead because of him. Because he was arrogant to think that he was powerful enough to beat whatever challenge he had in front of him. When he was in Hospital he decide to become stronger. He will avenge all who died by voldemort and he will not be expecting his luck would save him over and over.

After the minister didn't beleave him he knew he will have problems with the MoM. Before he left he raid the library to find spells but he realise that he would like help with searching and Hermione show him a spell that a muggleborn from ravenclaw create. The spell would search a specific phrase and will summon or light the books. The disadvantages of this spell is that it find only what is written and not what you want. For example if you search for soul the half library will be light up and some of them will be from love novels to information about dementors

Althout it did help him to find some specific spells even if he had to read where it was created or by whom.

When he stayed at his uncle he decide to increase his stamina and start jogging and some exercises.

After the demontors attacked and he hadn't got any news from his friends he decide he wouldn't wait for them and would go alone. Since they wanted to be left alone, he would be alone (although in some years he realised that it was a childish tantum).

He went to gringots and he found that his family had a family vault but couldn't take any money or items from it till he was of age. He ask if he could see the books and read them inside he manage to find a lot of information.

he wanted to know some more about dementors and how they drain your soul and he search for 'drain soul' with his spell. he was surprised to find 3 books. One was about beasts another about some warnings about soul magic spells and an old book about demons and warlocks. He start to read it and although in the start he found that those spells were dark he find a lot of fascinating informations and a spell that you drain the soul of someone to make soulshards. He could use those shards to summon some powerful demons but he needed his target to be near dead or dying.

He found a spell to summon a lesser demon but not to many informations about how to become a warlock.

After he stay in gringots for some time (they fed him since he pay them) and learn about his trial he decide to answer the summon of his headmaster and went to grimaold place. Albus manage to free him from his trial and he went back in his quest to become stronger. He was a bit angry with his friends so he continued to search and learn in secret.

One week before he went to Hogwarts he decide to summon that imp and see if he learn anything from him. He remember the runic circle (wasnt that hard) and remember that to bind the imp to him he needed to beat him (after he overhear Sirius saying that wards here are to strong for ministry find underage magic). He beat the imp easy and he thou it will be harder, but with one reducto spell he died and return to the nether. the stupefy that follow hit just air.

He knew that he could summon him in any place now so he hid the runic circle and summon the imp by the name quzpep. What he learn in that hour was outstanding. Demonic power was what he was looking for. They amplify his power and he can use powerful curses. Althout all this was sounding too good, he remember the book about the warnings about soulmagic.

While he decide to wait until he read the book about warnings he fell some compel to this dark powers.

The most strange think he learn was a question his imp asked him. Why you have two souls? The imp told him that it was like to have a soul shard inside him, but he would need to ask other smarter demons about that. He could use it for a spell that use a shard (like summoning a higher demon) he was afraid what would be the consequences.

He recognise that he and Voldemort had a connection and he was almost possible that was kind a soulmagic they share. He thought that it was some kind of mind magic so he went to Sirius library and search for mind magic. He found about occlumency and legilimency.

When the school year started he really hold for a month. Between his training in occlumency and the ministry trying (and manage) to make him look like a liar, he left. He had learned about thestrals and he ride one of them to go to gringots. there he almost empty his trust vault and ask from the goblins training in sword and hand to hand. They were expensive and hard bargains, but I beleave it was worth it. Also his trust vault would be fill again next year so he didn't have economic problems.

They were happy that I was very good student and between their training and my personal training in oclumency and demonology a year passed with very few problems.

One of them was the vision of Arthur Weasley dying. I send a message to Sirius with Hedwing (she had follow me here) and they manage to save him without to many questions.

But this start another question. What did Artur was doing there? And what were they try to protect from Voldemort?

This lead me to the ministry and hearing the prophecy. I left it there cause I didn't knew if there was any alarm. but I really wondered why Voldemort haven't manage to get it already. A silence spell and his cloak of invisibility and he was in and out without problems.

Back in Gringots he though about the prophesy and what if the power he knows not is demonology? He start to hunt the deatheaters down and acquire shards. He started with those who escape Azkaban and how the ministry thouGHT that it was him and Sirius Black responsible he had no idea. Perhaps since he defend him in the end of third year then I must be dark and a follower of him.

My powers grow stronger and I manage to summon voidwalker felLhunter and succubus and the last one was his favorite as a teen...

Ahem... back to the memory line. In the end Voldemort tried to get the prophecy from ministry and thanks to the order delaying him he was ousted in front of the minister of magic and now I was again honorable and continue to search for me for another reason.

My goblin trainer told me that this will be a very good opportunity to get the sheep of wizard world to follow him (and the goblins will get some good rep of course).

So I went and found Rita and gave her an interview (her ban had been lifted) about the only requirement to keep what he told her and don't change his words. I say about why should I fight for people who don't believe me. Why should I fight for people who keep death eaters in the government (they were caught when Voldemort att and their I was under the imperious trial would be shortly). Why should I fight for a government who think I am delusion and for the people who believe in it. You are sheeps and after the tournament I yell wolf and you tried to silence me. Now stay with the wolf. I am done.

She didn't write only those, but the uproar killed voldemort politically and send him some years behind schedule. I also told her where I was and how the goblins always protect the wizards with one way or the other but always are looking down to.

That make Voldemort attack Gringots directly. I fight with the rest of the goblins and they finally recognise me as their equal (and a small discount in their service). I fought Voldy but I show him my demonic powers and overpower him, but before I end it, he run away. He saw my demonic powers thought and for that day he tried to find what was this power.

The war was at an end. I decide to help again the wizards and they fell behind me. I didn't use my dark spells and send them away, just my fire base spells. With the help of the Goblins I manage to find all of Voldys horcruxes (I use the one in me to summon a succubus) and we were almost ready to end it, until Voldy killed himself (or more correctly the demons killed him when the portal opened)... and summon the burning legion to earth in the dark forest.

End flashback

He walk in the Gringots. Demons manage to destroy all the building but they never manage to get underground. They destroy half the London aswell before the military eliminated them. He was the only Wizard that defend the Goblins and since more than 80% of the goblins fail, they gave away all the gold they were protecting before the muggles come and loot it and they would go to leave in the mountains what ever left of them.

Ihave a last spell to do in this world. Burning legion has killed all my 'family' and friends and the no-magical government sees me as a demon and one responsible for the summoning. They had seen me in demon form.

Their solution is to kill me.

I disagree. I will hunt down Sargeras and the rest of Burning legion. I will have my revenge. I learn of azeroth from my demons and I am planing to go there. I know that they will be their primary attack so I will help them defend. I have my golds, muggle weapons and my knowledge.

Now, only to open the portal.

A.N.: I pass the Harry Potter lore fast. Will plan to say more about the week about demons vs wizards in flashbacks