Just to be clear, this is a triple cross between YGO/HP/Mummy. The Mummy elements come into play soon enough, but the pairing is firmly FemHarry/Marik.

Then

Everyone "knew" of thirteenth house. It was a common headache of the postmen, because there was a thirteenth house on Privet Drive that occasionally got mail, but there was no way to deliver it because no one could find the bloody thing. By this point the post generally threw out any letters to the house because it was assumed the house had been destroyed and some paper-pushing bureaucrat simply hadn't done their bloody job.

The thing was, there was someone who knew perfectly well where number 13 was. She used it as a secret base/sanctuary whenever her relatives were a bit too much. Thanks to the cash she found inside, she was even able to buy groceries that she hid inside the home. She didn't know why none of the neighbors could see the place, she was just glad she had one place she could call her own that none of her relatives could bother her.

Though there was one room she was not particularly fond of going into.

It had little to do with the items inside and everything to with the smell that came from the dead body inside.

It was really becoming a bit of a health hazard.

The small girl went up to her least favorite room and did some more investigation...her eyes lingered on an odd jar that was just a bit too high for her to reach.

She went to get a chair from another room, and carefully climbed up.

The moment she touched the jar, the atmosphere in the room changed in an instant. There was a subtle chill that would terrify even the stoutest heart.

Something was awake and it was not very happy.

Her eyes were drawn to something in the corner. She hadn't seen anything move, it was more of a general 'sense' that told her to look in that direction.

Green eyes met an indescribable pair connected to a canine headed figure.

The conversation that followed next would set the tone for the next nine years, and would result in a much happier ending to a destiny she was unaware of and would likely want nothing to do with.

At the time, she was just happy the odd canine creature (she later learned it was called a "jackal" properly disposed of the dead body. It took weeks for that room to be rid of the smell and even then it was ages before the neighbors shut up about it.

Now

Marik cursed under his breath, mostly at the fact some idiot Englishman had apparently stolen the Winged Dragon of Ra, correctly assuming that the "muggle piece of cardboard" was more than it looked and held powerful magic.

It took him a few days to figure out which house belonged to the thrice-damned curse breaker, as there were apparently two houses in this awful neighborhood that had powerful wards. One was vastly weaker than the second, and after some serious observation he deduced the one at number four was not the house he sought. The people there were utterly vile, but they were decidedly ordinary...they were also very fastidious and he didn't see them holding onto a muggle card as the boy didn't look the type to take care of his things at all.

Since there was a distinct lack of fallout, Marik deduced that they did not have Ra or have anything to do with magic. In fact they were so ordinary he was rather baffled that there were blood wards over the place at all.

Which meant the second house was his best bet.

The second he stepped foot past the doorway he knew immediately he was in for a massive headache. For one thing the magic in the house was so thick it wasn't even funny.

It was in the office that he found someone waiting for him. A girl, about fifteen or so looking distinctly unamused.

"You do realize what a rather stupid idea it is to break into a witch's house...right?"

"Considering I'm tracking down someone stupid enough to rob a magical tomb and bring something they have no idea how to handle back with them to a country known for Nazi-like minions known as Death Eaters and a dark lord that makes absolutely no sense, you tell me," he deadpanned right back.

There was a pregnant silence, before the young woman introduced herself.

"Raven," said with a polite nod.

"Marik."

Lavender eyes scanned the room and the moment they landed on the canopic jar with the lid in the shape of a jackal's head, he bit back a vile curse.

He looked at the young woman.

"We you related to the fool who took that from it's sacred resting place?" he asked, nodding to the jar.

Normally he wouldn't give a damn about the things, but he could feel the sacred spells were still intact and the eyes of the jackal seemed to be watching him.

"Not in the least. The man had no family, but since I was able to pay his debts all his assets defaulted to me, once the goblins took their cut," she replied cheerfully.

To be more specific once she learned about magic and the goblins, she tracked down where the man left his key, went to the bank her third year and claimed his vaults since he was a registered curse breaker.

The goblins claimed all the proprietary items for the job, and were more than happy to dump all his junk on a woman who was willing to pay them the required bribe. A few more bribes secured the house and they discreetly updated the wards on the home so she could safely crash there and not have to deal with the Ministry knowing her actual address.

She had been living there for the past four years after a deal with her fat pig of an uncle. She merely stayed in his home for a week before going to her actual summer residence and they did their best to avoid crossing paths. It was an arrangement that suited both parties rather well.

Raven looked at Marik curiously. His skin tone and the fact he clearly knew what the jar was made her believe he was Egyptian.

Marik was just done with this mess and he still hadn't found the card yet.

"Look, have you seen a card in this house? The previous owner stole it from some serious heavy duty protections for very good reason."

She blinked.

"A card. As in a playing card or a trading card of some sort?" she asked.

"Trading card," he said promptly. It was a relief she at least knew the difference.

"Is it one of those Duel Monster cards? I know Dudley got into them for a time before he rage quit over losing one too many times and because his parents refused to buy any more cards upon learning it's original name," she asked.

Marik had something akin to relief on his face. So she had seen it.

"It's called the Winged Dragon of Ra, and it's very particular about who it will allow to handle it," he explained.

Normally he would have forced the issue, but this was a witch and that meant he had to at least try to be polite. Mostly because magicals were a monumental pain in the ass to deal with if they were the ones who robbed tombs and were often very good at defending them with unfamiliar curses.

"Oh that one," she said exasperated. "He was being difficult so I've been using him as a bookmark for years. Bazz never stops laughing whenever it's brought up."

"Bazz?" he said almost dumbly.

Hearing a loud and rather terrifying yowl, he turned to look at what could only be a purebred Egyptian Mau...one that even his inexperienced eyes could tell was a servant of the goddess Bastet.

This just became even more needlessly complicated.

Bazz jumped onto the desk, before knocking over a pair of books. If Marik was decidedly unhappy before, it went up by a hundred when he realized what the books were.

"...Why do I have the distinct feeling I'm being set up?" he complained.

Raven tilted her head as if listening to something. Then she answered him.

"Because both you and your brother asked for an out in regards to your clan in a way they can't disown you for, it just took a while for things to be set up because you were too young," she replied.

Marik was not happy, but before he could answer that Raven suddenly cursed. Her head whipped towards the street, though the window faced the back yard.

After a moment, Marik realized with growing horror what was going on as certain memories he had worked very hard to repress for damn good reason came to the forefront.

"Bloody dementors!" swore Raven. She grabbed her wand and ran outside. Fortunately the specialty wards she had requested be put up around the home were strong enough to keep the foul things out.

Marik was very upset because Odion was outside in the car and he could only hope that his brother locked the doors. It wasn't much of a defense, but it was better than nothing.

So you could imagine his surprise and relief when Raven didn't freak out about the dementors, just flinch slightly from bad memories.

"Expecto Patronum!" she shouted in a clear voice. A corporeal stag appeared and crashed into the dementor attacking the car Odion was in. It did a turn on a dime and charged at the one closer to them.

It gave Marik a clear understanding of how strong this witch was...and solidified his desire not to piss her off.

This...was going to be an utter headache and he knew full well he owed her because neither brother knew how to drive off those blasted monsters.

It felt surreal being at the English Ministry of Magic, but considering the circumstances Marik and Odion were in complete agreement that they get this out of the way sooner rather than later.

Raven was not contesting the "immediate expulsion", she just didn't want the hassle of replacing her wand because the idiots at the Ministry failed to do their damn jobs.

Raven was rather happy because for once she had witnesses that the Ministry would have to take seriously, and an out from a school that had become downright awful.

After what happened last year, she had lost all faith in the teachers having her best interest in heart. Especially learning too late that she could have forfeited in the tournament and kept her bloody magic.

It took them three hours just to get a meeting with Madam Bones.

She was less than amused that two Egyptian pure bloods and the girl-who-lived was in her office at all.

"May I inquire as to why you felt your issue was so important you came to me directly?" asked Madam Bones frostily.

Raven had to raise an eyebrow at the tone.

"No less than three days ago I was attacked at my home by two dementors. And yet not once did any of your aurors show up to get a statement. Instead all I got was a missive from Mafalda Hopkirk less than an hour after it happened explaining I was being 'expelled for using magic in front of a muggle'."

Madam Bones eyebrows went up at this, first at the mention of dementors then the immediate expulsion.

"Are you here to contest the expulsion?"

"No, I'm here to register a complaint that whoever is responsible for investigating the casting of a patronus in a residential area is a bloody idiot who didn't even bother to check the facts," said Raven crossly. "First off, there were no muggles around. I was in a known warded house in a muggle residential area...the post men don't even deliver directly to it anymore and just put the main in the post box I pay for if it's addressed there. Secondly, the only people who were present during the attack were magical...they agreed to come with me to present a statement."

Which neatly explained the obvious Egyptian wizards in her office.

"My main issue is that no one came to ask why the spell was cast or expressed concern about dementors being that close to a muggle residential area. Last I checked, the clause for underage magic has exceptions for life-threatening situations regardless of who is casting the spell...it's the obliviators job to clean up the mess."

Madam Bones looked at the two Egyptians.

"Would you be willing to give your statements regarding this issue including memories?"

"Absolutely. We came here to retrieve something the previous owner unlawfully brought to England after looting a recent tomb. We weren't expecting there to be a new owner or that those monstrosities would show up," said Marik.

Considering the serious nature of the situation, Madam Bones personally took their statements and memories of the event. It took her all of an hour to get the expulsion overturned and several inquiries started over the fact that no one investigated the charm being cast.

Raven was perfectly fine not attending Hogwarts...it was the idea of losing her wand she had issues with.

As it was, a polite but firmly worded letter was being sent to Hogwarts stating that "Raven Potter" was withdrawing from the school in the interest of self-study as she found the school to be "too disruptive" to study for such an important set of exams.

Considering some of the very concerning things her niece had told her about Potter's adventures at the school, Madam Bones was already very unhappy with the way things were. She fully planned to do her own investigation, especially after the debacle during Susan's second year when there were multiple attacks and children being petrified by an unknown source.