John Watson's jaw dropped as a large grey-feathered owl flew over him and straight to Sherlock. "Sherlock, why is there an owl in our flat?" John asked in a concerned tone.

"You wouldn't understand, just go back to your blogging." Sherlock replied smoothly as he reached for the letter that was clamped in the bird's beak. It let him remove it before taking a snap at his hand. "Of course my sister would send you, you ruddy beast." The owl clicked it's beak for several seconds before attempting to take a bite of Sherlock's ear. "I'm reading it, you bloody thing. Stop that." Sherlock told the creature as he tore open the letter.

The detective's flatmate was now pointing at the large bird. He was unable to form any words. An owl had come into the flat, given Sherlock a letter, and now Sherlock was speaking to the bird and mentioning a sister that John was unaware Sherlock had. Sherlock was currently ignoring John and focusing on the contents of the envelope.

To my Dearest twin brother,

I have been forced to contact you by the current headmaster of Hogwarts. McGonagall would like me to inform you that the deatheaters are rising again. Though, I am sure you already know of this despite your choice to live among the muggles. A few of the professors have left to join them. Others have fled in fear that Hogwarts will be a target, which it no-doubtingly will. For some very odd reason, you and Mycroft are being brought in to teach Hogwarts. You really have no choice in the matter as we had an agreement that if they ever gained power again, you both would do what you could to help. I previously thought that you could help at a distance, but I have been informed otherwise. This is most depressing. Mycroft is taking over as DADA professor. You are needed to teach two courses. We have rearranged the time-tables in such a manner that you can teach the two subjects with ease. Potions and Muggle Studies will be your classes. I have also gotten permission for you to bring your muggle along. Some of Hogwarts protective charms have been redone to allow him in. I knew you wouldn't want to leave him behind. He can help you as an assistant. Please note that I am not at all fond of your return to the wizarding world, but it is absolutely necessary. The students need protection and very few are willing to fight out of fear. I will be coming to collect the three of you tomorrow. Mycroft will meet you at your flat. I will arrive at 10 o'clock sharp.

Sincerely,

Almeda

As Sherlock finished reading, the owl made impatient noises. Sherlock finished and set it aside. This causes the owl to contently fly out the window which it had come in from.

John was still watching bewilderingly. It took nearly three hours for Sherlock to explain to John that he was born a wizard and had chose to live in the muggle world after the second wizarding war, as did Mycroft. He went onto to tell him about pureblood families and about deatheaters. Sherlock's parents had been them. Sherlock and Mycroft had never agreed. Almeda had, but eventually she came around when she saw the true destruction of the war. The three were disowned and fought against the deatheaters. They were young then and they saw much death. Mycroft and Sherlock left to live among the muggles and had given up all their magical items. They left them with Almeda in case that they would ever return. Almeda stayed and helped rebuild Hogwarts and the Ministry of Magic.

After John was finally convinced, Sherlock went on to tell him all about Hogwarts. The three Holmes children had been in Slytherin during their time at the school. Though, to this day Sherlock strongly believed the sorting hat had been tampered with. He believed that he belonged in Ravenclaw and no other house. He had tried arguing with the hat, but it was grabbed off his head and the boy was sent to sit with the Slytherins. Now, John seemed to understand. However, Sherlock knew that the next day would be quite complicated for the muggle.