Harry's Revenge

Harry's Aunt Cheated on her husband and had another child Called Jason with the man she cheated Vernoum on Vernoum hated Jason because of what his wife did so he neglected Jason and left Harry to raise him that's when Harry age 15 finally had enough he was going to raise his four year old cousin as his own Son he didn't care what any one else says about it.

When Harry Gets back to From Hogwarts Marge was doing achient rituals with demons and feeding them to Harry then Harry write down in a diray whats been happinging Vernoum found it and when Haryr took Jason his son who he adopted out he came back to find Vernoum acting strange what harry didn't relise was he actually Killed his Aunt and Dudley and stuffed them in the Attic when then he found his dirary he became obsessed with it and killed him and drowned Jason in the bathtub with the cat and then stuffed there body's in the Attic and duck taped the door shut before killing himself

Now Number 4 Privite Drive is the most haunted house in all of England and those who enter the house gets the curse until they are dead
Hogwarts must learn what happened in that house but they don't relise whats going on because Jason and Harry have been missing for a 4 years and they want to know what happened to them