The months of the School year were passing quickly, And it was nearing December. Dumbledore acquired the Mirror. It is also known by a more common title, The Mirror of Erised, the mirror was at in Hogwarts deep in a room called the room of requirements.
The only room in Hogwarts that was ever a mystery, it doesn't have a normal door, It has a concealment spell placed upon it, and the only way to open it is by asking it, not out loud. In your mind.
It took a number of years to figure out the location of the room, but he finally succeeded.
On Christmas Eve Dumbledore sat in his office, and wondered about Harry. He thought of James, he crossed to his many bookshelves and pulled out The Tales Of Beetle The Bard, and looked in the first page. the symbol he had lived off of, The Deathly Hallows. He crossed to another shelve and took off a nicely decorated ornate box. he took the lid off and looked inside. He smiled a grave smile. He still had it, and now it was time to return it to were it now belongs.
He wrote a note explaining whose it was, and how he received it, and left the note unsigned. He wrapped it in silver wrapping paper, and brought it to Professor McGonagal.
"Please set this under the Gryffindor Christmas Tree," said Dumbledore
"Sure Albus' replied McGonagal
The next day Dumbledore thought about what he had given Harry, he thought of the dangers of it. He knew that Harry would try to wander the school at night, and at the thought he smiled, just like James.
He thought about the Mirror of Erised, and became concerned. If Harry stood in front of the mirror, there is no telling how attached he would become, what the mirror could do to him. So after the Christmas he gave instructions not to be disturbed, and went to he room were the mirror was.
He sat on one of the empty desks and cast a concealment charm around himself, and he waited.
He heard a lot of harsh whispers about someone being up and wandering around the castle. Then the door opened, but no one was there. It shut quietly and Dumbledore waited. Then Harry Potter took of the Invisibility Cloak and walked, mesmerized, towards the mirror. He appeared o have an expression of wonder, which was quickly dismissed and replaced by shock.
"Mom?" said Harry, "Dad?"
He he looked around him, as if looking for someone, or expecting someone. He returned his gaze to the Mirror, and slowly lifted his hand to his shoulder.
Then really slowly, as though he was forcing himself away from the Mirror, he turned away, picked up the cloak, and whispered "I will return" before disappearing under it while half running, half walking out of the door.
Dumbledore knew that someone would soon discover the secrets of the Mirror, therefore he waited with it for the following night.
Harry returned the next night, but he wasn't alone, Ronald Weasley was accompanying him and his face showed excitement along with Harry's.
They both ran to the mirror, and Harry pointed and said "Look, here's my dad," pointing at the right, "and my mom." he looked at Ron when he said "I don't see anything".
Harry then took his arm and brought him closer and Ron whispered "Whoah, I'm Head Boy, I'm Quiddich Captin, We've won the house cup." And he looked at Harry with excitement and asked, "Do you think this mirror shows the future?"
Harry looked at the Mirror for a while, and said "How can it, My parents are dead," and he lowered his eyes to the floor. "Let me have another look."
The Ron responded and said "You had all night yesterday, it's my turn."
Just as Dumbledore expected, the brawl started, this is why Dumbledore wanted the Mirror to be found, he wanted Harry to know how Powerful it was. There was a scrape on the floor and Dumbledore saw the door open slowly.
The boys froze, and ran to the cloak, taking refuge under it they waited. Miss Noris's lamp like eyes peered around the room, and focused on the spot Harry, and Ron Just disappeared. Then she walked away.
Dumbledore heard Harry whisper, "She probably went to get Filch, we better go," and without another word they walked out the door shutting it behind them.
Dumbledore stayed one more night, and when Harry showed up again, he decided to show himself and talk to Harry about the Mirror. When Harry raced passed him and sat infront of the mirror Dumbledore quietly walked out from the alcove and fixed his gaze upon his sister's face, from the Mirror. He waited for a moment then looked at Harry.
"So back again, are we Harry." Dumbledore said in a calm, but serious tone.
Harry stood up and quickly turned to see who was there. When he saw it was Dumbledore he relaxed and said, "Well it shows me my family."
Dumbledore smiled and said, "Let me explain how this mirror works. This Mirror is called 'the Mirror of Erised', it shows us our deepest and most desperate desires. You, who have never known your family, desire nothing more then to know who they were, to have them alive again. does that help?"