I do not own Harry Potter, or Sherlock.

WARNINGS: Extreme AU! FemHarry, eventual explicit content, cannon typical violence, bad language. In this story, Mycroft Holmes is sixteen years older than FemHarry! Don't like, don't read! Inspired by various HP/MH stories, mostly Purple Mangosteen.

I recommend their stories! This is basically a set up chapter, with a summary of previous events, and very little dialogue.

Chapter 1

The first time Mycroft Holmes had met Lady Potter-Black, she was being awarded The Victoria Cross- the UK's highest honor. Mycroft was one of the very few 'Muggles' in the know about the Wizarding World. The Queen, the Prime Minister, and himself were the only members of the Government who knew (unless they had a muggleborn in the family). He had to say, he had not been impressed.

The majority of Magicals that he had met were worse than goldfish. The were the veriest sheep, cowering behind a young girl, and living in the Dark Ages. The girl herself, however, fascinated him.

Lorelai Potter-Black, Countess of Blackmoor, was born Lorelai Carina Potter on July 31'st, 1980. Her Father, Lord James Potter, was a minor Baron of the small villiage of Godric's Hollow in Wales. Her Mother was a commoner, named Lilly Potter nee Evans. James was from an Ancient and Noble House in the Wizarding World. Mycroft had since learned that some titles held over into the 'Muggle World'. James Potter's title was one of them.

After her birth, Lorelai was blood adopted as the Heiress Apparent to her Godfather, Sirius Black. Black's title was higher than the Potter's, and also carried over into the normal world. For all intents and purposes, Lorelai had three parents. Sirius Black had been disowned by his Mother, but not his Grandfather Lord Black, Earl of Blackmoor. After the adoption, Lorelai became a Potter-Black.

Unfortunately, war was upon the Wizarding World. A terrorist in the mold of Hitler, called Lord Voldemort, was killing everyone who opposed his views on Pureblood superiority. The Potter's would have already been a target. Due to their belief in equality, and James' marriage to a muggleborn, they were already in Voldemort's sights. A prophesy, however, sealed their fate. A so called 'Death Eater' had overheard a prophesy that stated a child would be born at the end of July, who had the power to defeat the Dark Lord.

Voldemort was made aware of two children who met this criteria. Neville Longbottom, who was born on July 30th, and Lorelai Potter-Black. Voldemort immediately focused on Potter. Was it because she was a Half-Blood like him? Because she was born later? No one knew the reason, except for Voldemort.

The Potters went into hiding, using a spell to hide their location. It was assumed for many years that Sirius Black was the Secret Keeper for the Potters. On October 31st, 1981, Lord Voldemort received the Potter's location from a traitor. He moved immediately to attack. His goal? To kill the entire Potter Family.

Voldemort made quick work of Lord Potter, who was not holding his wand as the Dark Lord entered. He then killed Lilly Potter, who begged him to spare her daughter. Voldemort then turned his wand onto Lorelai Potter, his prophesied future nemesis. He uttered the spell that had never failed to kill, aimed directly at the baby girl. No one was sure what happened next. All anyone was sure of, was that Lorelai survived, and Voldemort disappeared.

Lorelai Potter-Black was hailed as a Savior. She was given the title The Girl Who Lived. As the Wizarding World celebrated, Lorelai was being left on a doorstep. Her story could have gone differently, but the Queen intervened.

No matter what she was to Wizards, she was a member of the Nobility. She would have to be raised to fulfill her obligations, and that would not happen at her commoner Aunt's home. After a legal battle, the young Heiress was placed with Lord Spencer. His daughter Diana, had just married Prince Charles, and what was not widely known, was that the Spencer's descended from a squib line of the Potter family. The relationship was so distant as to be almost non-existant, but it was enough for the Queen.

Growing up, Lorelai was a frequent guest of Charles and Diana. She was a cherished member of the Family, and was mainly raised by Diana's brother. When William was born in 1982, Lorelai became somewhat of an older sister to him, and to Harry when he arrived.

In 1991, everything seemed to start falling apart. Prince Charles and Princess Diana's marriage had been rocky for years, and the fights were becoming much more frequent. This was also the year that Lorelai was starting Hogwarts' School of Witchcraft and Wizardry. The Queen had made sure she was prepared for the Wizarding World, and she had been taught the Culture and etiquette of both world's.

The Hogwarts' years of Potter-Black were mainly classified. The only thing he knew for sure, was that Voldemort had never died. When he came back, everyone looked to Lorelai to save them. She was only 14.

Four years, and many deaths later, Lorelai Potter-Black ended Voldemort's cursed existence for good. Ending the war, and countless attacks on the Muggles of Britain.

Lorelai had lost her innocent Godfather, a Godfather figure, friends, and almost all of her family to Voldemort and the Death Eaters. Diana, one of the only Mother figures she had ever known, had died less than a year before the death of Voldemort.

Even though Lady Potter-Black was not a member of the Military, The Queen had inducted her into Her Majesty's Secret Service. This was why she was receiving the Victoria Cross, and not the George Cross. Lorelai was only just 19.

When Mycroft had thought about Lorelai Potter-Black, he had expected a child. In the time between the pictures of her at Diana's funeral, and now, she had surely blossomed into a beautiful woman. At the funeral, Lorelai was stick thin, almost emaciated. She had had to be physically supported by Diana's brother, Charles.

Now, she was petite but curvy. Her body every inch a woman's. Her long, curly black hair was in an elaborate up do, and she was dressed modestly, yet flatteringly. Her posture was perfect, and she wore her Nobility like armour, carrying a dignity about her that was ingrained into her psyche.

She had always been very close to Prince Charles and Lord Spencer. Charles had always wanted a little girl, and Lorelai was as close as he had. Both men looked suitably proud, and she seemed uniquely able to keep the peace between the two men.

After the Queen had awarded her the Victoria Cross, a reception followed. Mycroft was introduced to Lady Potter-Black by the Queen Herself.

"Mr Holmes, We would like to introduce you to our 'Niece'. Mycroft Holmes, may We present Lady Lorelai Potter-Black, Countess of Blackmoor, Barroness of Godric's Hollow." The Queen introduced her protege to her Right Hand.

"It is a pleasure to make your aquaintence, Lady Potter-Black. Thank you for your service to our fair Country." Mycroft said, bowing over her extended hand, and kissing the air above it. In the Wizarding World, it was considered an insult to let your lips touch the hand of a Lady to whom you are not engaged. Her beautiful green eyes widened slightly, correctly reading his knowledge through his actions.

"Likewise, Mr Holmes. Your reputation precedes you." Lorelai said, nodding her head to him.

"You both have provided exemplary service to the United Kingdom, and have the love of Country in common. We believe you may find other common ground." The Queen said, and Lorelai almost groaned. Aunt Lilibet was almost certainly matchmaking! Yes, she found Mycroft attractive, but he was obviously much older than her. He probably considered her little more than a child.

Mycroft was unsure if he was reading the situation correctly, but he thought his Monarch was trying to set him up with a Lady 16 years his junior! He was almost certain he was wrong, but he knew he was correct. What he wasn't sure of was why?

Mycroft was a powerful man, but though wealthy, the Holmes family was not of the Nobility. He was also honest enough with himself to admit that she was out of his league, completely. She was very young, and unspeakably lovely. She also had her own wealth. He had nothing to offer her. He was tall, yes. But he was also thicker around the middle than he would like. His wavy, black hair was thinning, and he had a very stern countenance. He was by no means a prize to any pretty, young thing.

He also knew his limitations, and foibles. He was attracted to power, intelligence, and beauty. Lorelai Potter-Black had all three in spades. She also obviously believed in service to your Country, and had seen and experienced more than any delicate young Lady should. That had to make her older than her years suggest.

She would make a perfect wife. Beautiful, cultured, and refined. He had often felt that some things would be much easier with a suitable wife. Social obligations, household matters, and physical comfort to name but a few. (Not to mention getting Mummy off of his back.)

Mycroft decided to tread carefully, yet pursue the possibility. He even had the Queen's approval, it seemed. He would have to do some research on Courting Customs in the Wizarding World, but that was a small price to pay. The question was, was Potter-Black interested? There was only one way to find out.