Disclaimer: I do not own Harry Potter, Fate/Stay Night, Fate/Grand Order, or Tsukihime and make no money from this or my other fanfiction stories.

Author's Note: This story features a large cast of characters, and I was only able to list a few. One of the main characters in the story was not available for me to list due to her not being a canonical part of either of the two series I listed as this being a crossover of, even though she is part of the universe of one of them. As such, I hope no one feels like nagging me on that fact.

It was a cold and lonely night as a lone figure wearing a long violet silk dress with a black thigh length bodice which had red accents covering it. Her hair was raven black, and she had the most startling crimson color eyes. This individual appeared to be no older than thirteen or fourteen years of age.

Suddenly her attention was caught by a man in a hooded cloak over by one of the houses exclaiming "BOMBARDA!"

She cocked her head to the side, 'Odd, that house is clearly protected by one of my Fidelius Contracts. How is he even able to see it? Well as the Mistress of Contracts, it behooves me to investigate this.'

Allowing her presence to fade so completely that she was imperceptible to all humans, the young looking woman followed the hooded figure into the house.

Upon entering she paused momentarily to take in the sight before her. On the floor was a man who appeared to be in his early twenties, bleeding from multiple wounds inflicted by several large nail like structures that were lodged in each of his limbs and through his eyes.

'Geeze, not even Nrvnqsr Chaos is that gruesome with his victims.' the woman thought to herself.

Continuing her journey up the stairs, she watched in curiosity as the man in the hooded robe confronted a stunningly beautiful red haired woman who was desperately trying to protect her child.

"No! Not Harry! Anything but Harry!" the Woman exclaimed while throwing her arms wide and interposing herself between the hooded man and the crib in which her child was sitting.

"Stand aside woman and you may yet live." the man hissed out as he brandished his wand at her.

'Oh, so these are Wizards then.' the young woman in the hall thought to herself.

"No! Take me, but let Harry live!" The woman screamed out desperately, maintaining her position between the man and her child.

"I will not tell you again woman, stand aside now!" the man stated harshly.

"NO! I will not let you harm my son!" the woman shrieked.

The red eyed woman in the hall smirked and whispered almost inaudibly "By the Crimson Moon and the Black Blood, I Altrouge Brunestud accept your Contract. Your child will not be harmed."

Unseen by both the red haired woman, and the hooded man, a magic crest flared to life in the bottom of the crib beneath the blankets, sealing the contract that Altrouge Brunestud had just enacted.

"Avada Kedavra!" The man yelled causing a green bolt of energy to erupt from the tip of his wand which proceeded to hit the chest of the red haired woman, causing her to fall to the ground a lifeless husk.

"So much for that Prophecy. You will die here boy, alone, as an infant and in a state where you can't even defend yourself. Avada Kedavra!" The man cast the curse again sending out another bolt of green energy. This one was aimed at the forehead of the toddler in the crib.

As soon as the bolt of energy hit the toddler, the crest in the bottom of the crib flared, and the bolt of energy rebounded at twice the speed, hitting the man in the chest. Much to Altrouge's surprise and shock, the man exploded causing a rather impressive hole to be blown out of the roof of the Nursery.

Unsurprisingly the toddler was now crying. Sighing, Altrouge allowed herself to become visible to the world around her once again, and walked over to the toddler. She bent down to the floor and picked up the wand that the man had dropped upon exploding, she looked at it curiously for a moment before placing it between her index fingers and thumbs, she then proceeded to snap it.

"This is going to be a headache. I just know it is." Altrouge stated as she dropped the pieces of the wand and bent over the crib and cooed at the child trying the best she could to calm him down.

That was when she heard the sound of a roaring motorcycle. Curious as she was, she cautiously walked over to the window, or what was left of it, and looked out. "Huh, not everyday that you see a flying motorcycle." With her curiosity sated she went back to trying to comfort the child.

A few moments later she heard someone vomiting. A few minutes after that a man burst into the room pointing his wand this way and that, he then exclaimed "Oh god, not Lil's too…" pausing momentarily before asking, "Wait… hold up, who're you?"

Altrouge turned to look at the man, which resulted in him gasping at the sight of her eyes. She rolled her eyes, knowing perfectly well that her eye color was considered a sign of evil within the Wizarding community. Sad fact is that Red eyes were exceedingly common within the world of Magi. Practically every female in the Einzbern clan had red eyes for crying out loud.

"Oh, hello. I don't suppose you happen to know the little ones name? All I was able to get from the conversation between his mother and her murderer was his given name, 'Harry.'" Altrouge inquired.

The man rolled his eyes before saying "Err… right… his name is Harry James Potter; and you still didn't answer my question. Who are you?"

"Hmm? Oh, I go by many names. The one most relevant to tonight though is 'Master of Blood and Contract.' My true name however, is Altrouge Brunestud." Altrouge stated as she performed a perfect curtsy.

The man's eyes bugged out "Oh wonderful. Not only do I discover my Godson's parents dead, but I also find the Ninth Dead Apostle Ancestor in his Nursery with him. So what are you waiting for, get on with killing us already."

Altrouge bit her lower lip, and furrowed her brow before saying "I really didn't come here for that. I was merely curious why a hooded man was battering down the front door of a home protected by one of my Fidelius Contracts."

"Contract? I thought the Fidelius was a charm?" the man inquired while furrowing his brow in obvious confusion.

"It's a charm that creates a contract using my powers." Altrouge explained before she stated; "You know, you haven't introduced yourself yet either."

The man blinked for a moment, opened his mouth, before closing it and promptly putting his wand away, "You know, you're right. Sirius Black at your service," He said with a mock bow, "Do you mind if I ask what you intend to do with my Godson?"

Altrouge looked at the man for a moment before turning back to Harry and scooping him up into her embrace, she then explained, "Well, I am afraid I can't just leave him here. You are welcome to come with me if you want. But be warned, I take no responsibility for your life. I only hold Prim's leash, I don't tell her who she can and can't kill. Though I will be stopping her if she tries to harm Harry."

"Prim?" Sirius asked with a frown creeping up onto his face.

"My Wolf, Primate Murder." Altrouge stated in a bland tone of voice as she turned towards the door out of the room.

"Primate Murder? As in the Beast of Gaia?" Sirius asked with a tone of fear edging itself into his voice.

"Um… yes, I believe that is what most people call her." Altrouge responded.

"Oookay, well I think I'm going to go track down Peter. I need to make sure he is handed over to authorities for giving the secret of this house over to Voldemort." Sirius declared.

Altrouge frowned as she mentally scanned the contract for this residence. "Peter Pettigrew? The Potter family signed a marked Death Eater as their secret keeper when they are apparent enemies to the leader of the Death Eaters?"

Suddenly a large man with a scraggly beard entered the room. "Sirius, who's tha, and why's she got Harry?"

"Hagrid, it's alright. At least I think it is. I am letting her look after Harry, as I doubt that anyone will be able to harm him while she is around." Sirius said in a reassuring tone of voice.

"But 'Eadmaster Dumbledore said I got ter bring Harry straight to him." Hagrid argued with what appeared to be a frown marring his face, though it was hard to tell with all that hair.

"I am afraid that won't be happening." Altrouge stated matter of factly.

"Now you look 'ere, young lady…" Hagrid began and reached over to try and place one of his overly large hands on her shoulder.

Much to his shock Altrouge reached up, grabbed him by the wrist and twisted his hand in a way that rather bloody hurt. "I don't believe I introduced myself. Hello, my name is Altrouge Brunestud, The Eclipse Princess of Black Blood. You may be a Half-Giant, but I have enough raw physical strength where I could take bloody Herakles in a fight without even trying. Now as I was saying, you are not taking Harry anywhere as I have a contract with his mother to make sure that he is not harmed. Which means that until he is old enough to look after himself, I am his new Guardian."

"Oww, oww, oww…" grumbled Hagrid in obvious pain.

Altrouge took pity on him and released his wrist with a slight shove away from herself.

"Hagrid, I think it best if you returned to the School." Sirius said looking at the Half-Giant. He paused momentarily before turning to look at Altrouge and saying "I would warn you that Headmaster Dumbledore will try to locate you and retrieve Harry from your care."

"He does so at the risk of his own life. Prim does not take kindly to intruders into my territory." Altrouge stated coldly.

"Right, maybe I will come with you to the Castle, Hagrid. Best to make sure the old man doesn't do anything that might end up getting him killed." Sirius grumbled, and with that he led Hagrid out of the building.

Sighing to herself, Altrouge made her own way out of the building a few minutes after the two men had left. She took Harry with her.

xXx A Few Hours Later xXx
xXx Einzbern Castle xXx
xXx Black Forests of Germany xXx

Altrouge walked into the Castle with Harry in her arms, completely unconcerned by the various Homunculi Guards that all went on edge by her sudden appearance.

"Milady Brunestud, to what do we owe the pleasure of your presence?" the voice of Jubstacheit von Einzbern called out from the top of the stairs.

"Lord Einzbern, I was hoping that I could acquire one of your Homunculi to act as the Nurse Maid to my new Ward. I will of course still be serving as the child's mother in most capacities, but alas, I am unable to fulfill some of the more necessary requirements a mother holds for their child." Altrouge directed her voice towards where she saw the elderly but still physically fit man standing.

Jubstacheit laughed at Altrouge's predicament before saying "I have just the individual. I will allow you to take Leysritt, one of my new Granddaughter's caretakers, for your purposes. Be warned, she tends to not have a filter on her mouth."

"That shant be a problem. As such I thank you for your courtesy." Altrouge stated as she did her best to dip a curtsy despite the precious cargo in her arms.

xXx Two Days Later xXx
xXx British Ministry for Magic xXx
xXx Wizengamot Chambers xXx

Altrouge sat in the back of the room. She was rather irritated with how these people managed to blunder things up so easily.

"Now, is there any business that anyone would like to bring to the Wizengamot's attention?" asked Albus Dumbledore from where he sat in his rather ornate stylized golden throne.

Immediately allowing herself to be perceived, Altrouge stood up and declared "Yes, actually there is a rather big issue I would like to bring to the attention of the Wizengamot."

"Your name young miss?" Dumbledore inquired in a bored tone of voice, barely bothering with the courtesy of paying attention to her.

"Oh… I have many, many names and titles. I have in been called among other things, the Eclipse Princess of Black Blood, the Twin Heiress of Crimson Moon Brunestud... " she saw several people in the Wizengamot suddenly sit up and pay her rather close attention, including Albus Dumbledore, as they recognized those two titles, but she wasn't done, "The Vampire Princess of the Dead Apostles, the Ninth Dead Apostle Ancestor…" At that point just about everyone in the room had gone a deathly shade of white, "And most relevant to today's discussion, the Master of Blood and Contract. I am Altrouge Brunestud."

Suddenly a toad-like woman stood up on the Wizengamot side of the room and positively shrieked out the words: "Aurors! Seize her!"

Alastor Moody glared at the toad-like woman while growling out "Are ya daft woman? She'd slaughter em. Not even the Dark Lord in all his power was stupid enough to try and tell one of the Dead Apostle Ancestors what to do, their Power is just too huge to comprehend. And she's in the top ten out of twenty-seven of em. Trying to stand against her would be as good as committing suicide for our boys. We'd best hear her out."

Altrouge chuckled a little bit at this acknowledgment of the facts of the matter before saying "Ahh, it's good to see that at least one of you Wizards knows who holds the power in this room."

"Here, here!" an older gentlemen on the other side of the room chorused.

Altrouge looked that direction and noticed an older gentleman with short spiky grey hair, a short beard and red eyes. This sight caused her to groan and exclaim, "Oh for the love of... Gramps, what are you doing here?"

"Oh, you know me. I can't resist watching when something entertaining is happening." the old man stated with a chuckle.

Sighing she turned to the rest of the room and said "Allow me to introduce my adopted Grandfather, Kischur Zelretch Schweinorg, the Clocktowers Wizard Marshal, also known as the Fourth Dead Apostle Ancestor."

"I'm here too Sis!" a woman's voice chorused from a few seats beyond Zelretch.

This statement caused Altrouge to facepalm. "And that would be my baby sister, Arcueid Brunestud, the White Princess of the True Ancestors…"

Altrouge then turned to look at her sister and grandfather and asked blandly "Okay, seriously, what are you two doing here? Is my life really that entertaining to you?"

Arcueid just grinned happily saying "Oh… I just got word from one of my descendents that something entertaining might be happening here today."

"Your descendents?" Altrouge asked in mild confusion.

"Well… I kind of had offspring with a Wizard about three centuries ago, so I have a descendent that is currently keeping tabs on Wizarding Society for me." Arcueid said airily.

"And I just happened to be perusing the Kaleidoscope when I noticed some slight deviations springing up in this universe centered on the events of October 31st, so I thought I would investigate." Zelretch stated.

"As interesting as all that is, you said you had business to discuss with the Wizengamot?" Dumbledore inquired, his tone of voice a lot more pointed, and his eyes now sparkling with interest in the Wizengamot's unexpected guests.

Altrouge tore herself away from her family and looked at the Wizengamot, "Er… yes. I want to know why Sirius Black was arrested and thrown into Azkaban without so much as a Trial."

"He's a Death Eater who betrayed the secret of the Potter's location to the Dark Lord. He then proceeded to kill twelve Muggles along with Peter Pettigrew." Bartemius Crouch Sr. stated blandly, not even bothering to look up from the newspaper he was reading, he had pointedly been ignoring the entire Wizengamot, though he listened to all that was said.

Altrouge scrunched her nose in disgust. "Okay that first charge is completely false."

"What do you mean? It is common knowledge that he was the Potter's secret keeper." said Bartemius Crouch, finally deciding to pay attention to the proceedings as he put his newspaper aside.

"Okay, first off, what is the good of having a Secret Keeper if everyone knows who it is? Second off, if the person who holds the records of all Fidelius Contracts in the world doesn't know who the actual secret keeper happens to be, then we are all in a lot of trouble, aren't we?" Altrouge stated haughtily.

Several members of the Wizengamot blinked at that statement before quickly trying to parse it together. Augusta Longbottom was the one who reached the obvious conclusion before anyone else, "Merciful heavens! That means that we are practically handing the keys of our homes to a Dead Apostle Ancestor whenever we utilize that charm!"

"Got it in one!" stated Zelretch rather smugly as he laughed uproariously.

"Oh please, it practically says as much in the incantation. What did you think the words 'Qarmizi Alqamar Brunestud' in the incantation was a reference to?" Altrouge griped.

"Well it could have meant me." Arcueid said helpfully.

"Not helping sis." Altrouge muttered.

Altrouge sighed before looking at the assembled Witches and Wizards and saying "At any rate, Sirius Black was not the Secret Keeper for the Potter's. Peter Pettigrew was."

"That doesn't change the fact that he is guilty of killing twelve Muggles and Peter Pettigrew." Bartemius Crouch countered.

"Just to check… is there a law on your books that says a private citizen is prohibited from killing a known terrorist?" asked Altrouge confusedly.

"There is no such law." Albus Dumbledore getting a bad feeling about where this was going.

"Gramps, how many of these good Witches and Wizards are marked Death Eaters?" Altrouge asked of Zelretch.

Zelretch hummed thoughtfully before saying, "If I answered that this wouldn't be entertaining anymore."

"In other words over half of them." translated Arcueid.

Altrouge smirked seeing that several people had rapidly paled once more. "Okay, different question Gramps. Which one of these individuals is the new ringleader now that their precious Dark Lord has been discorporated?"

Zelretch smirked and said "Oh, that would be the smarmy blonde git known as Lucius Malfoy."

Suddenly a blonde man stood up and thrust his wand at Altrouge screaming out "Avada Kedavra!"

Altrouge grinned wickedly and allowed the bright green beam of energy to hit her smack dab in the middle of her modest chest. There were gasps of horror when people noticed that Altrouge had not fallen to the ground as a lifeless corpse like she should have.

Altrouge laughed "Really? Is that the best you can do?"

"How are you not dead?" asked the man who had fired the curse to begin with.

Altrouge laughed again. "Please, that spell is barely a C-Rank Curse by Magus standards. It would take something of at least EX Rank to so much as dent me when it comes to magical attacks, and to have a shot at actually killing me, you would at least need to be the Eighth Dead Apostle Ancestor or better. And that is assuming you can get past Prim to pull it off."

"Who or what is Prim?" Asked one of the other people in the room.

"Oh, that would be her pet wolf. Otherwise known as Primate Murder, the Beast of Gaia, and the First Dead Apostle Ancestor." stated Arcueid in a happy singsong.

"Coincidentally, Prim is also very protective of my new ward." Altrouge stated in an offhand manner.

You could hear the fact that several people had just fainted and / or pissed themselves at that statement. Clearly they knew who her new ward was.

"Out of mild curiosity, are you guys going to arrest that fool for using one of the spells you classified as Unforgivable?" inquired Altrouge.

"Why should we? He was cleared of all charges for being a Death Eater, and using that curse on someone who is clearly not a human is not against the law." sneered the toad-like woman from before.

Altrouge sniffed the air, "Can you smell the hypocrisy in this room? How on earth was a marked Death Eater cleared of all charges? You are aware that you have to be one hundred percent in control of your actions in order to be able to be branded by that type of mark, aren't you? In other words the 'I was under the Imperious' defense doesn't work in regards to marked Death Eaters."

"Nonsense, we would be aware of it if that were the case." said Barty Sr.

"How could you know? The Dark Mark is not a common piece of spellcraft. I only happen to know because I have seen similar types of spellcraft used in the centuries since I was born. Each time by a Dark Lord or Lady." Altrouge explained to the assembled Witches and Wizards in a rather handy manner. She then tossed her hair while leveling a pointed glare at Barty Sr. practically challenging him to argue her point of view.

Seeing that no one was arguing with her statement on that matter, Altrouge sighed before asking the obvious "Did Sirius Black have a Dark Mark?"

"What does that matter?" asked the toad-like woman with yet another sneer marring her… ugly face.

"If he lacked the mark, then he wasn't a Death Eater. Whether he was a supporter of the Dark Lord or not, I wouldn't be able to say, but that Mark is much like a Cattle Brand. It marks the bearer as the chattel of the one who crafted the design. All rights, property, spouses, children, titles, and just about anything else you could care to name subsequently belong to the creator of the Mark from that day forward until such time as the crafter of the mark permanently dies." Altrouge explained.

Albus Dumbledore frowned before saying "Miss Brunestud, I couldn't help but notice you said that Voldemort had been discorporated before, and just now mentioned that he would retain the titles and rights of those he marked until such time as he permanently dies. Could you explain?"

"I could, but I doubt most of you would believe me considering how hard headed you are being." Altrouge commented dryly.

"Humour me." Albus said.

Sighing Altrouge looked at the assembled Witches and Wizards before turning to Albus and saying the single word "Horcrux."

Albus gaped at her before exclaiming "DAMMIT!"

"Whatever is the matter Albus?" inquired Augusta Longbottom with a touch of concern in her voice.

At that point Zelretch and Arcueid both burst out laughing. Zelretch was the first to regain his composure. "Oh, this is rich, so the old man there is the only one in this room who even KNOWS what a Horcrux is. That is hilarious. Bad, but hilarious. For the sake of expediency, six currently exist."

Dumbledore looked horrified at that information, as he exclaimed "Bloody naggering fucking hell in a handbasket!"

"ALBUS!" several of the women in the room exclaimed.

"Well… to be fair… that is a reasonable reaction to this kind of information." One of the men on the sidelines stated, "Saul Croaker, Chief Unspeakable at your service. For those who are unaware, a Horcrux is a Dark Artefact into which a Witch or Wizard places a piece of their own Soul that they have managed to fracture off of themselves by committing the murder of an innocent soul. So long as the Horcrux exists, then the Witch or Wizard is incapable of passing through the Veil. What this means is that despite no longer having a body to inhabit, Voldemort is still very much alive... if this information should turn out to be true that is. That said, the fact that our new 'Savior' has gained the attention of THREE Dead Apostle Ancestors, along with a True Ancestor… I think it is a safe bet that Voldemort's followers should consider reevaluating their allegiances."

You could see how the Wizengamot was divided between both supporters and adversaries of the man who calls himself Voldemort just by the faces people were making in response to this information.

"I will put this out as a blanket warning to you all. If Voldemort finds a way to regain his body before my ward reaches his fourteenth year, then I will not hesitate to bring Primate Murder to Diagon Alley on Letter Week with the instruction to 'go have some fun.'" Altrouge said while leveling her best glare at the Wizarding Government.

Both Arcueid and Zelretch winced upon hearing that threat. If she did that… London as a whole, not just the magical portion, might end up a lost cause. There was a very good reason why Altrouge's personal territory was in one of the most absolutely desolate portions of Siberia, and it had nothing to do with the girl liking her privacy.

While Altrouge is probably the least bloodthirsty of the Dead Apostle Ancestors next to Sumire who prefers to spend her time drinking alcohol instead of killing people and Zelretch who tends to be more of a prankster than a murderer, that didn't mean that she was above committing mass slaughter just to prove a point.

"Now, since it is clear I will be incapable of getting you to be reasonable and release Sirius Black, much less deal appropriately with known Terrorists, I think it is high time I left, as I have a child to raise." Altrouge stated as she got up and left the chambers.

Author's Note: Yes, the character I was incapable of listing due to her not being on the list was Altrouge Brunestud. Again, sorry.