The war was over, Voldemort had lost, all the Horcruxes were destroyed. The war had been long and hard for all involved. All of the fighters on each side had been killed. The entire Order of the Phoenix had been wiped out and Harry, Ron, and Hermione were left all alone, Hogwarts had fell all of the students brutally murdered and used for rituals to strengthen Voldemort. Harry, Ron, and Hermione had been caught in their tent unprepared. A fight ensued and Ron took a curse meant for Hermione. His last words were to Hermione admitting that he had loved her. Lucius Malfoy was killed shortly after that by a furious Hermione.
Hermione died next, they thought they had tracked down the next Horcrux only to walk straight into a trap. They fought courageously and Hermione took out nearly all the Death Eaters in the trap but she too ended up killed, Draco Malfoy avenged his father and then like his father before him, was killed shortly after. Harry grew older and grew stronger, Death Eater numbers fell quickly and soon the only two people left in the war was Harry and Voldemort. Twenty six years went by and both of them grew stronger, equally they learned. Harry had long given hope on winning and was only still fighting to honour his friend's memory. The end soon had drawn near, both were mortal and the final fight was inevitable. On the grounds of where Hogwarts once stood Voldemort and Harry stood for the last time. The duel lasted six days, both were evenly matched in magic, Harry had rushed forward and then kicked Voldemort as hard as he could into the rib cage and cast the killing curse. The war was done and Harry didn't know what to do. He went to where the great library of Alexandria stood, frozen in time and started removing books. He didn't know what he was looking for until he found it. A ritual that would send him into an alternate reality. He hoped the alternate reality would be before the war. Many of the pages were torn, ripped, or burned. With the little arithmancy he knew he theorized that to get to the targeted objective the Mirror of Erised was needed. From the other books he had read he knew that while it showed it's hearts desire it was also a window to another possible reality. It used to be used as an exorcising tool until its true purpose was discovered. To avoid inflicting dangerous creatures on other realms it was put in storage. After the Library of Alexandria "burned" all knowledge of its true purpose was destroyed and it was sent to the newly formed Ministry of Magic's Department of Mysteries. It was kept there under the eyes of the government until removed centuries later by the Headmaster of Hogwart's Albus Dumbledore.
If the proper ritual was used it could send someone's soul into the alternate reality. The ritual just happened to take so much precision no one else had ever tried it before. Harry had nothing else to do however and spent the next three years working on the ritual. The end result was somewhat anti climactic as once the ritual was complete there was no sign of magic. Harry touched the mirror, scared that perhaps all his work had not paid off but his hand slowly went through the glass as if it was water. He pushed himself all the way through and his limp body fell to the ground as his spirit passed through into another reality.
I am new to writing Harry Potter fanfiction so forgive me if it's not good. This was just an idea what if Harry had won the war gone to another dimension and ended up being his sworn enemies son… yeah. If you like: read. If you don't: dont. If I have spelling errors tell me. Constructive Criticism encouraged. I'm bad with commas, if you want to help me with them, help me with them.
