Disclaimer: I don't own Naruto or Harry Potter

Holy (insert your choice of words here) Nearly 3 years since my last up-date? I am soo sorry to those of you who liked this. I've decided to put aside my other stories and just focus on this one for awhile.

Hermione, Fred and George continued their practice sessions without Ten-Ten there. It was a bit tricky seeing as how they were beginners, but there wasn't a lot of choice. Well, they could ask Anko but for obvious reasons they were avoiding that option.

"Where do you suppose they went?" Fred asked as he practiced flipping his sais in and out

"Don't know. Professor Mitarashi probably does, though." George answered with a grin that would make any passerby suspicious.

Hermione paused in her kata movements

"It would be nice if we knew more about them, but technically we aren't supposed to know anything about-you know...what they are, are we? If she catches you spying they could get into a lot of trouble."

Fred and George considered this. As curious as they were, nobody wanted to give Anko a reason to reprimand their new shinobi friends.

...

Hermione joined Ron and Harry in D.A.D.A and all of them were thrilled to see Lupin was back and Anko and Snape were gone. Hufflepuff was quite put out over not having a seeker, but some guy named Cedric Diggory stepped in. For the most part life at Hogwarts continued as usual. Lupin was cool, Snape made their lives miserable, a murderer was after Harry, and Hermione was the only one who actually studied. There were only a few differences; Snape and Anko were now working in cohorts, the murderer after Harry wasn't Voldemort, and Draco had tried subtly asking Hermione where the new transfer students had gone (though it was obvious he wanted to know about a specific one)

Harry, Hermione, and Ron were on their way to the dining hall when they spotted Mcgonagall showing someone around. He seemed very strange to Harry with his side-swept white hair, a mask that covered most of his face, and the stranger seemed to be more interested in his book than whatever Mcgonagall was saying.

"Potter, Weasley, Granger!" Mcgonagall called them over "This is Hatake Kakashi. He's here to help with the Sirius Black crisis."

To Hermione it was clear this guy was another shinobi.

"What about the dementors? Aren't they here to guard the castle?" She asked

In answer to her question Mcgonagall and Kakashi's eyes shifted to the window. The trio gathered around the window and in the distance saw Anko chasing around a dementor shouting at it.

"Anko's way of dealing with unhappiness is to beat up whatever she blames it on." Kakashi explained without looking up from his book.

Harry nodded mechanically, feeling stunned by the sight. He hadn't thought it was possible to beat up dementors.

Wait...is that blood?

Harry stepped back and took another look at Kakashi, who was leaning lazily against the wall. He looked cool, but with his apparent lacksadaisal attitude Harry wondered if Kakashi was really going to help them.

"What's that say?" Hermione pointed to the title of Kakashi's book.

She might get a chance to learn what sort of books ninjas read, or maybe it was some sort of wizard-world book she hadn't seen before that he was reading so he could go undercover more effectively.

"Come-Come Paradise."

Jaws dropped all around

"Um...that sounds a lot like..."

"Smut?" Kakashi finished for Harry, and his single visible eye crinkled in a smile "It's kind of an addiction."

Mcgonagall's lips flapped a few times before she found her voice

"Now see here, Mr. Hatake. I will not tolerate such books in this noble school." Mcgonagall furrowed her brow and fixed the shinobi with a stern expression.

With a sigh Kakashi put the book away. Mcgonagall was once again perfectly composed.

"Now, you three should hurry along or you'll be late for dinner."

They nodded and continued on their way while Mcgonagall went on showing Kakashi the castle.

"Where do you reckon they're comming from?" Ron asked after they'd rounded a corner.

Harry thought he had a point. First the transfer students-two of which turned out to be jinchuuriki- then miss Mitarashi, and now Mr. Hatake. There was something off about all these people. Hermione pretended to join in on Harry and Ron's spinning of random theories as they tried to figure out the mystery Hermione already had the answer to. At least, almost. She still didn't know what the shinobi were doing at Hogwarts or why they'd left so abruptly.

As they walked Hermione absent mindedly put her hand in her pocket and felt a piece of paper she was certain hadn't been there before. She quickly excused herself to the restroom. Hermione went into one of the stalls, closed the door, and pulled out a small note from Kakashi.

He must have slipped it into my pocket when we passed him.

The note read, "Meet me at your designated training ground tonight at 9. Tell those twins as well."

Hermione, Fred and George snuck out of the castle and went to their training grounds to meet Kakashi. When he didn't show up they began to train, then after they got tired the three sat around talking. 3 hours later they'd had more than enough and were about to go back to the castle when a voice stopped them

"Yo."

They looked up to see Kakashi crouching on the tree branch above with eye the only indicator he was smiling. One hand was lifted up in greeting.

"Sorry I'm late. I saw an injured hippogriff and stopped to help it."

It was an obvious lie, but if he knew that Fred, George and Hermione knew about the shinobi then they and their new ninja friends could be in a lot of trouble. Who could say how all of them (especially the shinobi who told) would be dealt with.

"You can relax." Kakashi told them jumping down. He seemed to be a shining example of those words. "Naruto sent me a message explaining everything. I'm his teacher."

"Do you know where he and the others are?" Hermione blurted out

Kakashi seemed to be considering her for a moment before answering, "I don't feel like telling you."

The three were disappointed, but it was nothing they hadn't expected.

"So then, Ten-Ten's been teaching you three to wield weapons, now let's see your team work. Go ahead, come at me with a killing intent."

A/N: I was avoiding the whole 'shinobi go to protect Hogwarts' cliche, but I wanted to get Kakashi into the story and couldn't think of another way. Before anyone starts complaining, I know dementors don't really bleed. But if anyone could accomplish it it would be Anko.