Being a werewolf Harry was naturally a night owl and did not need much sleep. As he got older, he needed less and less sleep so Harry typically slept for 2-3 hours a night and the rest of the night he spent exploring Hogwarts underneath his invisibility cloak. That night Harry decided to explore the forbidden third floor corridor. Harry came across a locked door so harry whispered, "Alohomora" and the door clicked unlocked. Harry continued down the hallway until it opened up to a giant room with a very large three-headed dog guarding a small trap door.

Hello, I am Prince Alpha of werewolves. What are you guarding?

My master did not tell. My instructions were to guard the door.

Who is your master?

Rufus Hagrid.

Did he put you here?

Yes. I wish that I could leave but I must not disobey.

How about I enlarge the room so you can walk around in it?

That would be nice. Harry raised his and and the casted an expansion charm on the room. This was the same charm used on tents to expand the living space inside but keep the exterior size the same.

May I enter through the door? I have no ill intentions.

Okay. Prince Alpha. The large dog lifted his equally large paw to reveal the trap door and Harry opened the hatch to jump in. Harry landed in a mass of tangled plants. The species of plant was not entirely clear but since it was planted in the dark, the enemy of all dark potted plants is light. "Lumos Maximus." A blinding white light was emitted from the tip of Harry's wand and the plants immediately parted and released Harry. Harry dropped farther down and unlocked the next room.

The room was full of flying keys that would unlock the next door. Scouring the room Harry saw the right key. It was an older looking key to fit into the older looking lock on the door. Harry grabbed a broom that was lying against the wall and skillfully flew to grab the key. But as soon as the key was in his grasp the rest of the keys began to chase him and he flew down to the door level, inserted the key and the door opened. Hastily, Harry flew through the open door and slammed the door shut. About two-dozen keys flying at high speeds smashed into the wooden door, piercing it almost completely. That was certainly not done every day. Harry mentally was mad at himself because he could of easily summoned the key and avoided the danger of flying with those keys chasing him. It was frowned upon to put one self in unnecessary danger especially if that person was royal or help political power in any form.

Beyond that door was a large chess set. Harry attempted to walk past the board to the awaiting door but a knight from the opposing team held Harry at sword point. "You must play and win to advance." Harry mounted the white king and began to play. "Pawn to C4." The most fun aspect of wizard chess was the capturing method of opponent's pieces. Twenty minutes later Harry emerged victorious. With the opposing team's king checkmated he walked dismounted his king and walked freely through the door to the next challenge. After walking through the door into the next chamber Harry realized that Harry could of just apparated to the other side of the chess board and saved time but playing chess was more fun.

Walking through the door revealed a table with seven potions, a riddle and a door surrounded in flames. Harry probably could answer the riddle and answer the challenge the old fashioned way, but there was another way around it. So Harry casted a freeze-flame charm and harmlessly walked through the flames and entered the last room. This time he did not put himself in danger of poisoning himself. There stood only a mirror in the center of the circular stone room. Harry walked up to the mirror and gazed into it. He had ready many books on this mirror. The mirror of Eirsed, it showed one's deepest desires. Harry was hesitant to look because he might like what he is looking at and be trapped. But Harry took the chance and looked deep into the mirror.

Harry saw himself in the mirror with a stone in his hand and putting it in his pocket. The image puzzled him but then he felt a slight weight in his pocket. Reaching to the pocket he saw a fist sized blood red stone. There were many things that his rock could be but most likely it was the Philosopher's stone. This was due to the level of security and complexity of hiding such an artifact.

"Toby." Harry called his personal house elf.

"Yes, Master Harry?"

"Please take this rock to my father. Tell him I found the Philosopher's Stone hidden inside Hogwarts. Oh, and take this." Harry took a vial out of a pant pocket and extracted his memory the past hour.

"My pleasure. Anything else?"

"That will be all. Thanks." With that, Toby disappeared with a 'pop.' At the end of the large room was another door. Harry really wanted to look into the mirror to find out his desires and took the chance. Once again Harry looked into the mirror of Eirsed. In the reflect was Harry being thrown a birthday party and surrounded by all of his friends and family. So this was his deepest desire. To love and be loved, that was all his heart truly wanted. With some sadness in Harry's heart he pulled away from the mirror and carefully opened the door directly behind the mirror and stepped through. He was out of the room and back in the third floor corridor. Silently Harry made his way back to the Ravenclaw dorms under his cloak and slipped into bed for a couple hours of sleep.