Challenge posted by-Lady Iri :

When Harry is attacked by dementors in third year he is kissed without anyone but Hermione knowing. He survives with is soul intact but he begins changing. He begins changing into what wizard myth has called a: Darkdemortus. A being neither human nor dementor. And with this change, comes powers that aren't present in dementors. Find out what happens for harry now.

**name change for harry: Demetri Black- Potter

Chapter 1

The hospital wing was silent as harry potter lay in one of the beds looking up at the ceiling while Madame Pomfrey went about tending to the other children in the room.

'I should have a bed with my name on it. I'm in here far too much.'

Was the thought that ran though the young 13-year-old's mind, for you see Harry Potter was not your normal teenage boy, he was in fact a teenage wizard who was a student at Hogwarts School of Witchcraft and Wizardry.

It had been a crazy night for young harry. First there was the fact that he had just found out his godfather was none other than Sirius Black the convicted felon who was really innocent but sent to the magical prison-Azkaban without a trial. Used a time turner, to go back in time to save the life of said "convict" godfather. Saved buckbeak Hagrid's pet. All while pissing off professor Snape.

Yeah harry was happy about that one. But there was one thing he was not so happy about.

Being kissed by a dementor when he ended up saving Sirius and himself (thanks to the time turner) from the dementors. Well actually harry didn't all understand what happened either. So he closed his eyes and thought back to when the dementors attacked.

**flash back**

Harry stood next to Hermione on the other side of the lakes bank and suddenly felt the gold and he knew why- Dementors. At least a hundred of them, gliding in a black mass around the lake towards them. He spun around, the familiar, icy cold penetration his insides, fog starting to obscure his vision; more were appearing out of the darkness on every side; they were encircling him and Sirius.

Hermione and Harry whipped out their wands and began shouting off the petronus charm loudly.

"EXPECTO PATRONUM!"

Many times over till the dementors were closing in on them as well as harry and Sirius on the other side of the lake. The dementors were closing in, barely ten feet away from them. They formed a solid wall around harry and Hermione and were getting closer….

The thin wisp of silver escaped from his wand and hovered like mist before him. At the same moment Hermione collapsed next to him. He was alone…completely alone…

Finally summoning all his happy thoughts of living with Sirius, no more Dursely's and actually having a family to love him he cast the petronus once more.

"EXPECTO PATRONUM!"

And finally his petronus was bright and full in the form of a stag in memory of his father.

Save Sirius was his only thought to the petronus and he watched it charge off and chase away the dementors.

Harry lowered his wand and turned to look at Hermione only to freeze and gasp as a dementor swooped in out of nowhere and sucked Harry's soul so fast that harry didn't have time to say the petronus charm again before he fell to the ground unmoving.

Hermione woke to the cold and gasped when she saw the dementor over harry sucking the soul out of him.

She stood up and pointed her wand at the creature and shouted with all her might and happiness.

"EXPECTO PATRONUM!"

She watched as the charm had no effect on this dementor and gasped when it turned to her and spoke in a scratchy eerie voice.

"He will live, but will be a darkdemor. He will be both wizard and dementor. When he wakes gives him this pendent and tells him he will transport to Azkaban and begin his training to fight the Dark Lord."

And with that she watched as the pendent was placed around Harry's neck and fly off.

Hermione then rushed over to Harry's side and watched as he woke up. His once green eyes were gone. They now were silver with a rim of green on the outside making him look almost blind.

His once messy black hair was now long at his shoulders and white with streaks of black, red, and green.

And on his neck was a mark that spiraled and had a ancient feel to it that started from under his left ear and down his neck till it disappeared under his shirt.

Helping him stand up she quickly cast a glamour spell of his old looks. "I'll explain everything when after we rescue Sirius."

**end flash back**

***I used the flash back scene from the book in prisoner of Azkaban and added some things to it. So for anyone who reads this story I used a section word for word from the book from J.K. Rowling's work. NOT MY OWN. ***