Just a little something, praying to Merlin this is original. Could be interpreted as slash.
When Dr. Tom Riddle agreed to assisting one of the pupils at Hogwarts, he had not expected this. Even in his youth, he wasn't as insane.
Harry Potter stood in the middle of the room that he had entered. No furniture was in the room. The walls were stone and the only light in the room was a single light bulb directly on top of Harry Potter's head. Harry Potter's feet were positioned so that they faced each other slightly in a fifty-five degree angle. His hair was disheveled and his skin chalk-white, as if he hadn't seen the sun in ages. His back was straight and his hands were clasped at his front. His emerald eyes twinkled. All in all, he would've looked like an innocent boy of seven years if not for his height, the insane gleam in his eyes and the cruel, maniacal smile on his lips.
"Hello, Dr. Riddle," a smooth, powerful voice shouldn't belong to that eleven year old.
"They say you're insane," he said bluntly, hoping to gain some of the boy's trust. Potter laughed.
"No, I am not insane." he said, his feet snapping back to become straight. He crossed his arms. "I am beyond insane," his smile grew wider. Tom took a sharp intake of breath.
"And why is that?" he asked tentatively, half-hoping the boy wouldn't respond. Dangerous, a voice at the back of his mind whispered. Run while you can.
Potter shook his head, smile never fading. "Well, Dr. Riddle, we never really know why someone goes insane. Take Bellatrix Lestrange, for example. Oh, we never know..." he began to rock back on forth on his heels. "However, since I'm in the mood today, I shall indulge you.
"The thing is," he started, never failing to rock. Tom shivered. "Maybe it was the Dark Lord Grindelwald who made me like this. Killed my parents, he did. But maybe it was also Albus Dumbledore who began stealing my money and who sent me to the Dursleys. Maybe it was the Dursleys, who neglected and abused me for all my life. Maybe it was the Minister, who put me up as a poster boy. Or maybe," Potter cackled madly. Tom took a step back. "Maybe we're just pawns on the chessboard. Maybe somebody is watching me suffer, sadistically licking his lips as he watches blood trickle down my head. Maybe it was even you, Tom Riddle, which will seal my fate." Potter sang.
Tom's eyes narrowed. "Oh really, now?"
"Hello, Harry Potter. We meet once again. I am here to help you." Potter whispered, but it was the loudest thing Tom has ever heard. "Potter, you are insane! Potter, come with me. Potter, I am here to fix the mess you are. Potter, cooperate. Potter, I am giving you a warning. Potter, join me in the realm of insanity."
Tom stumbled back and reached for the doorknob, twisting it and slamming the door closed, ignoring the peals of cackling laughter from Potter.
Tom swore to Merlin, if he had replaced the name from Potter to Riddle, maybe those could be quoted from he himself when he spoke to his reflection.
Maybe he and Potter were equally insane, but he was too afraid of admitting it.