Title: Deathly Still Waters

Summary: The general consensus of Hogwarts's residents is that Shisui Uchiha is quite possibly the strangest person or thing to ever enter their school.

Notes: princess amaryllis/half-truths does not own Naruto or Harry Potter and does not make any profit from it, nor does she intend to.

This fanfiction is a crossover between the manga Naruto and the works of literature Harry Potter and will contain spoilers for both series.

It's rated T, and therefore safe for those who are able to stomach swearing, violence, and inappropriate language.

There are no pairings other than canon ones.

It's also unbetaed, for the author does not wish to go through the hassle of doing so. Because of the author's preferred writing style, all chapters will be written in third person, present tense rather than the usual past. Additionally, the author uses American English; therefore any mistakes regarding British English may be pointed out.

There are mentions of trauma/suicide, because that's essentially Shisui's character.

If none of the above warnings turn you off, feel free to continue. They will apply to all chapters in this story.

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Chapter One: Posthumous

Shisui is quite certain that he drowned.

He still remembers the sensation, the sensation of fighting every single instinct in his body telling him to find air.

He's also quite certain he had been blind when he drowned. Danzo had stolen one eye, and he'd given his other to Itachi. (He hopes his precious little cousin is using it right.)

So when his eyes open with a sharp intake of air, he's naturally quite surprised when light floods his vision and air fills his lungs. Experimentally he exhales.

"He's awake," comes a female voice in a language that Shisui doesn't recognize yet understands, and he blinks, eyes watering from the brightness, and forces himself to sit up, feeling oddly lethargic, his mouth dry as Suna. White blankets (definitely a hospital) pool around his waist as he takes in the area.

There are two people in the room, both foreign looking and dressed strangely. The female probably the medic, since she's the one hovering by his bedside and looking concerned, not to mention the scent of medicine clinging to her person. A wizened man is sitting on the bed to Shisui's right. Neither of them are making any threatening glances, and in the case they should try to attack, he can feel the thin but strong senbon strapped to his leg, not to mention his Sharingan. Thankfully his hitai-ate is sitting on the table beside him.

The woman presses a glass of clear water into Shisui's hand and when he looks at it, he feels sick despite how irrational it is. He had chosen to drown himself after all, and he's a shinobi. Something as minor as a glass of water shouldn't faze him this much.

But it does, because he'd swallowed enough of the substance when he drowned, and speaking of which, he still doesn't understand how he's here, with both his eyes, and he can feel the tingle of chakra behind his eyes that tells him his Sharingan is there.

"No thanks," he croaks, hating how hoarse his voice is, and dry swallows. His saliva is thick and he can barely get it passed his throat.

"Nonsense," snorts the medic in a tone that all experienced medics seem to have—do as I say unless you want to suffer. "You clearly need water. You are dehydrated, young man."

"We haven't poisoned it, either," the old man says gently with a sparkle behind his round glasses. "You needn't worry about that possibility while you're in the infirmary. Poppy here would slaughter any offenders." He chuckles slightly.

Shisui is rather ashamed of his initial lack of thinking about the poison—he's a shinobi, goddammit, and he's not allowed this many screw ups at once.

"Drink, and we can talk afterwards," the medic, Poppy, huffs, helping Shisui bring the glass to his lips.

He drinks and swallows and one part of him is panicking from the lack of air because he's drowning again and the other is relishing the coolness going down his throat and eventually the latter half wins out and he finishes the glass.

"What's your name, young man?" inquires the old man.

"What is yours?" Shisui retorts, the hand under the sheets stroking the senbon nervously. While they might not have killed him or slipped a truth serum into his water yet, he's not about to trust them. He's a shinobi, after all.

"I am Albus Dumbledore, Headmaster of Hogwarts, a school of magic and witchcraft," answers the old man, and Shisui's trained eyes see no hints of lying. "It's not my full name, but most people find it far too long, so I'll spare you the full one. You may call me Professor if you wish."

"I'm Poppy Pomfrey," the medic says in a professional tone of voice, checking Shisui's vitals while he holds still, letting her do so despite it bothering him slightly—but that's most shinobi, after all.

Deciding to be honest for now, Shisui says warily, "I am Shisui Uchiha. What am I doing here, and where is this?"

"A student here discovered you on the outskirts of the Forbidden Forest, of all places," Pomfrey sniffs. "That was two days ago. What you were doing near there is beyond me. Just be glad you're alive, Shisui."

"You're in the same Hogwarts I'd mentioned earlier," Dumbledore adds, long and spidery fingers laced together on his lap. "We're about a week into the term."

"So, you are unaware of how I appeared close by to this… Forbidden Forest?" Shisui inquires. He's mildly amazed at the fact that there's someone as uncreative, if not more so, than the person who named the Forest of Death back in Konoha.

"I am afraid that we don't know," Dumbledore responds with a slight shake of his head. "Do you remember anything before waking up here?"

"Yes," Shisui answers immediately. "I was drowning." He bites back the myself. "I'm am positive that I have never heard of this school anywhere, and I believe the Naka River is nowhere near here."

Both Pomfrey and Dumbledore look mildly disturbed at the way he speaks of his own death so nonchalantly. "The Naka River is in Japan," Dumbledore muses. "That is quite far from here, which is in Scotland."

"Both those places are unfamiliar to me. I hail from Konohagakure, Fire Country."

"Those places are unfamiliar to us, as well," Dumbledore replies, looking quite curious. "Perhaps you come from a different dimension? It is hardly impossible."

"Yeah, maybe," Shisui sighs, running a hand through his hair and dropping the formal speech. It's frankly rather exhausting. "I honestly… don't know what to do here," he admits. "I mean, I lived for Konoha, and I died for it, and there's no Konoha here."

"If you would like, you could stay here for the time being," Dumbledore suggests. "Maybe we can find a way to send you back to your home."

Shisui hesitates before thinking, Ah, fuck it. I'm dead, anyways.

"Sounds like fun."

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a/n: For some unexplainable reason, Shisui's always been one of my favorite characters in Naruto, and so here's some tribute to him.

By the way, everything will be explained eventually, so no worries. Also, the chapters will definitely be a lot longer than this one.

I'll update once per week, on Saturdays.

So please leave a review?

Sneak peek: As soon as he enters, a pair of twins practically jump at him, probably expecting him to jump or something. Shisui simply blinks, having sensed their presences beforehand. "Good morning to you, too," Shisui says dryly.