The Last Horcrux
Harry Potter stood in front of the Mirror of Erised, holding the Elder Wand in his hand. He had just defeated Lord Voldemort in the final battle, but there was one more thing he had to do. He had to destroy the last horcrux: himself.
He knew that a part of Voldemort's soul was inside him, ever since that fateful night when he was a baby. He had seen it in his dreams, felt it in his pain, and heard it in his mind. He had hoped that it would be gone when Voldemort killed him in the forest, but he had come back to life, thanks to the sacrifice of his mother's love.
He had learned from Dumbledore's portrait that the only way to get rid of the horcrux was to use the Elder Wand, the most powerful wand in the world, and cast a killing curse on himself. He had to die, for real this time, to ensure that Voldemort would never return.
He looked at his reflection in the mirror, and saw his green eyes, his messy black hair, and his lightning-shaped scar. He also saw the faces of his friends and family, who were waiting for him outside the chamber. They had celebrated his victory, hugged him, and thanked him for saving them. They had told him that he was a hero, and that they loved him.
He loved them too. He loved Ron and Hermione, who had been with him through everything. He loved Ginny, who had kissed him before the battle, and told him to come back to her. He loved Neville, who had killed Nagini, the snake horcrux. He loved Luna, who had comforted him in the forest. He loved Hagrid, who had carried him back to Hogwarts. He loved McGonagall, who had led the resistance. He loved all of them.
But he knew that he had to leave them. He knew that it was his destiny, his duty, his choice. He knew that he had to finish what he had started.
He raised the Elder Wand to his temple, and whispered: "Avada Kedavra."
A flash of green light filled the chamber.
And Harry Potter was no more.
The End