Desperate teaser

This is a Harry Potter fanfiction called Desperate that I started during summer semester and lost. I found it again last Saturday and fell in love all over again with the idea.

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He sat on top of a giant wooden cross on the edge of a graveyard, wearing only a ragged and faded green tunic. The boy stared as another of the black-robed people walked past his grave. More of them had been showing up the past weeks and it annoyed the boy to no end. They had no respect for the graves, nor the people buried there. The boy hissed softly under his breath as one of the black-robes stepped on top of the graves.
They are very stubborn, kali?
The boy turned to look at the giant snake that had crawled up the wooden cross while he wasn’t looking. Then again, he was so used to the snake that its approach no longer mattered to him. They are. Slightly elongated fangs poked out from underneath the pale boy’s lips.
Shall we go hunting again, kali? They reek of old blood and other’s pain.
The boy stared a little longer at the black robed figures retreating off into the house sitting on the edge of the graveyard. His grin widened as he looked up at the moon. He waited several more moments before speaking again. I had a vision of Mother yesterday. He was in pain. I don’t like to watch Father make Mother be in pain, it unsettles me.
The snake’s eyes gleamed as it turned its head from the boy to the house the black-robes had disappeared into. The reptile understood his Master’s underlying message and fresh venom began to pool in its fangs. The black-robes would pay the Father’s debt.
The boy eventually turned his head back down to the giant snake. Shall we go Kali? Serenity warns us to be careful, but the light of Nothing shall cloak us in vengeance. The boy’s words didn’t even faze the snake, he was used to his Master’s strange prayers and whispers to the dead.
Boy and snake easily dropped from the high cross and slipped into the shadows of the gravestones.

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No, the boy is not Harry in case you thought that. He's something else. I'll give either a fanfic oneshot or a fanart drawing to anyone who can figure out what/who he is.

This is just the begining of the first chapter and the rest of it should be done within the next month.
Comments, questions? Love? Hate?