"Voldemort mouth curled. Well, well Parseltongue magic too. Potter, how long have you been keeping that secret from Dumbledore, I am rather intrigued. Where did you learn that?"
Harry hadn't sensed Dumbledore at all, so he had no problem revealing a few secrets. "The Chamber of Secrets. Once I killed the Basilisk I decided to explore the chamber, it turned out I stumbled across Salazar Slytherin's personal study. He had several books on Parseltongue magic that I was able to read thanks to your little gift. In fact I was very surprised you of all people never discovered it, after all weren't you the Heir of Slytherin?"
Voldemort sneered. "It seems I overlooked the chamber, all I was interested in was setting the Basilisk on the school and killing those I deemed unworthy, I never did explore the chamber." He hissed as a huge snake of flames began to form with his magic, he then sent the flaming snake towards Potter. Voldemort eyes narrowed as the boy flicked his wand slicing the curse in two and sent his own volley of Parseltongue magic back at him.
Dumbledore had seen enough, how had he missed all this? It was clear now Harry was hiding quite a bit from himself and others, but how could that be? Dumbledore had looked in the boy's mind several times and had seen no such memories, or Occlumency defenses. Severus had reported the same after their small sessions this year, where had he learnt all this dark magic? Albus had seen enough "That's enough Tom, leave Harry alone, you will deal with me now." Albus noticed both Wizards stopped and looked towards him surprise written all over their faces. "Behind me Harry!" However, the elderly wizard noticed Harry didn't even move. what surprised him more was the way Harry replied.
"No old man, this is between him and me, after all, one of us must die to fulfil this blasted prophecy and it certainly won't be me."
Albus blinked in surprise. "Harry you know?" The answer was written all over the young Wizard's face, his wand trained on his target at all times. "I heard it briefly before I smashed it an hour ago. By the look on his face though it seems he doesn't know it, what a shame Riddle, all this for nothing."
Tom eyes were blazing, the blasted boy knew the prophecy, but it wasn't just that, it was what the brat had called him. He had used his Filthy Muggle father's name to insult him. Tom raised his wand. "You dare! Now You die Potter, Avada Kedavra!
The sickly green streak left his wand and raced towards the boy who dived for cover and returned fire with a cutting curse that zoomed beneath his shield and hit his side. "Ahh you bastard, you will pay for that, another time Potter!" Tom grabbed his port-key when he noticed all the fireplaces in the foyer glowed green and the Minister stepped out and starred at him in disbelieve. He had no choice to retreat. He vanished away promising pain and torture on the brat who once again had bested him.
"He's back!"
After that Dumbledore had taken Harry back to Hogwarts and had demanded he was told everything, it seems not only had the boy been teaching students to duel and defend themselves, but he was also using a time-turner. Where had the boy got his hands on one? Black of course. He had used the spare time to train himself using Salazar Slytherin's spell book and other books he had managed to get his hands on. Albus had seriously underestimated Harry, it seems not even Hermione or Ron knew what he had been up to. He had been using a two way mirror to contact Sirius over the year who had been teaching him. The old man was once again surprised how Harry spoke to him.
"To be honest sir, I don't see how it is any of your fucking business what I do to protect myself, and those I care about. If you think I feel any remorse after what I did to those fuckers in the Ministry, then you are sadly mistaken. They murdered, raped and tortured, had I left them alive, the Ministry would have locked them up in Azkaban. Riddle's already broken them out once, he would do it again. This is a war Dumbledore, you said it yourself, simple stunners and other light spells are useless. If I want to go toe to toe with Riddle, then I need to learn spells that he would use."
Albus eyes narrowed. The more he heard, the more he was having flashbacks to Tom's years at school. He couldn't allow another student to go down that same path. Dumbledore frowned towards Harry "Such spells Harry are dangerous, not mention the two unforgivable you cast tonight. If the Ministry found out, they would have you in Azkaban in seconds. You're just lucky that no one was present except I in the foyer when you cast them. I am going to have to get an oath from yourself Harry that you will never use such magic again."
Harry just turned and looked at Dumbledore, was he being serious? He would do it took to stay alive, if that meant using a few dark curses to put the bastard down once and for all, then that is what he will do. Screw his greater good "Excuse the French sir, but fuck that. I need to prepare for war, such an oath would prevent me from doing that. We both know to fulfil the damn Prophecy I have to kill Riddle, only one of us can survive, and after the fucking hand fate has dealt me, I deserve a long peaceful life."