Harry Potter was rooming around in the castle. He was thinking. He was thinking about his dead godfather, the prophecy and Voldemort.
The more he thought the more he felt something was missing. He was at the seventh floor corridor. He took various rounds at the corridor wishing if he could find out how to kill Voldemort and what was it that kept him alive.
Suddenly a door appeared. The room of requirement opened. In there was some books. Basically the journals of Tom Riddle and Albus Dumbledore were lying there.
Harry first picked Dumbledore's journal. As he read it he didn't know if he should feel sorry for himself or be angry at Dumbledore. He knew he was a horcrux and he had to die to let somebody kill Voldemort. He also had various charms on himself so that he could not access his powers so that he could not be corrupted by it and would be willing sacrifice in battle.
Harry then picked up the other journal and read it. It took him few hours to complete that completely disgusting thing but he found two very interesting things. First as a live piece of Voldemort's soul he could call all the unlive pieces except the main spirit. But for this ritual to succeed he needed access to all his powers. Also there was a simple step to destroy them using basilik venom. Obviously Harry knew just the place to do this.
But did he really want to do this? Would it not be easy to just walk away an never return to this world who had nothing but used him like toilet paper? But where will he go there was really nowhere to go except to his parents and godfather? So then should he do this or should just take his life and let them rot in hell?
Harry decided he would do this, but before that, just on the eve he entered the chambers of his death he would write to all Wizarding papers across the world and other kind of Wizarding media and give them all proof of what he had found. He would send to the goblins with instruction that the keep sending it anybody and everybody till the whole Wizarding world know about it.
So he went to chamber of secrets after send his letters and proofs. First he went through the painful procedure of removing the charms. He felt he died during it. He definitely fainted. Waking up he performed the ritual of summoning the pieces. He got all five. One by one he stabbed them. Then thing of his parents he stabbed his scar. He felt excruciating pain. Then a scream and he was free. Then slowly he felt the numbness spread, to be sure he took the tip of fang and slowly but steadily pushed it inside his stomach. Seeing the blood in his hand he dropped the fang and waited for his death. As the pain grew worse and his vision blurred, he fell to his knees. He kept his eyes open as long as he could, but slowly closed them as the drowsiness took him.
When he woke up he saw his mother, father and Sirius all smiling at him. He took their hand and walked home.
Two days later there was sudden inflow in hell as Harry heard in haven. The angels were really gossiping how difficult it was for the people in hell to even keep up with such influx. Devil had come to god to get some of the really foul creatures. He begged God to banish some of the really bad one from existence. He said no time hell could truly redeem them.
Then harry saw a small boy of 5 being led home in haven by simple pretty lady and a handsome man. Harry saw the boy and called him, "Tom how are you?"
"I am good Harry thank you for saving me from Dumbledore" said the little child as he skipped and hopped to his new home.