M'kay, I'm not entirely sure how this is going to go as I've written a Harry Potter fic and an NCIS fic, but never together. So I'm going to play the first few chapters by ear, and if you like, I'll write more. If you don't, I won't.

DISCLAIMER: I don't own either NCIS or Harry Potter, just this plot. If I did, I would be able to look into the Mirror of Erised and see myself as I am.

There will probably be Tony/Ziva and maybe Ron/Hermione and Harry/Ginny.

This story takes place after HP Order of the Phoenix and after NCIS Season 7. AU after those.

"Has anyone seen Lavender Brown?"

This question was echoed through the halls of Hogwarts for hours before an answer was found. Minerva McGonagall straightened up sadly after crouching over her body; she'd tried everything she could, but by then the girl was gone. A dark pool of blood spread out from her, pouring from a deep wound in her front. McGonagall couldn't understand it. This wasn't the work of any curse. Lavender had been murdered in a crude, muggle way.

After sending her patronus to the other professors, she examined the location. A long abandoned classroom just off a corridor on the fourth floor. The classroom hadn't been occupied in years. Tables and chairs were heaped against the wall, and Lavender was sprawled in the middle of the floor, spread-eagled. Who would do such a thing? McGonagall thought to herself, as she brushed away the tears that started to form.

"Tony, if you flick one more paper ball at me, I will kill you with my bare hands!" Ziva hissed at her partner, after yet another missile hit her on the head.

McGee, not looking up from his keyboard, said, "She's probably not kidding, Tony."

Tony laughed. "Oh, I know she's not kidding, McSmarty Pants, I'm just trying to get her attention."

McGee rolled his eyes. "Of course you were."

Ziva calmed herself mentally. Although Tony frequently got on her nerves, she had to admit, she liked him. She hated that she loved him, but it had been that way for a few years now, so she was getting pretty good at hiding her feelings, not letting it interfere with her job. Speaking of which…

There hadn't been much to do lately. No murders in a week; a new record. So they did paperwork. Lots and lots of paperwork, and it was driving them all insane. She only wished they could catch a case before she started a killing spree.

"But are you sure, Professor Dumbledore?" McGonagall asked urgently, "They are muggles, after all."

Dumbledore bowed his head. "Yes, I am sure. Miss Brown's parents wanted them specifically to investigate. If you recall, Minerva, her father did work there once, he trusts these people."

McGonagall unwillingly agreed with Dumbledore. She just didn't see why they had to let more muggles know about them. But the wishes of Lavender's parents had to be respected.

"Now if you'll excuse me, I have to make a trip to the Ministry." He said, standing up.

Gibbs strolled into the bullpen, fresh coffee in hand. "Grab your gear, we've got a weird one." Was all he said.

The team sighed in relief, and sized their rucksacks. But Gibbs walked straight past them, to the elevators, calling over his shoulder, "Go home and pack. We fly out in four hours."

"Where are we going?" Tony called after his retreating back.

"Scotland." Came the snatched reply. "Need the rest of the team for this one."

Tony turned to the other two.

"Scotland?"

After a long flight, they finally touched down in Scotland. Exactly where they were, they didn't know, but the first thing they registered was the temperature. It was freezing.

"At least I remembered thermal underwear this time!" Tony told the rest of the team brightly. Ziva snorted with laughter, which Tony caught.

"I wouldn't laugh, if I were you, Zee-vah,"he breathed in her ear, causing chills to run down her spine, which had nothing to do with the cold, "they're your thermal underwear."

He grinned at her expression. "Told you they'd stretch."

The only team member who seemed right at home was Ducky. Being from Scotland himself, he wasted no time in telling the rest of the team all about his childhood playing in the snow, and visiting his relatives in Newcastle, just south of the Scottish border.

They were greeted outside the terminal by a man in a pinstriped suit, his scraggy hair framing his thin, scarred face. He looked almost like an old lion.

"Rufus Scrimegeor." He introduced himself, holding out his hand for Gibbs to shake. "I'm the Minister of Magic."

Like? Hate? Sorry it was so short, if you want more chapters, they'll be longer, but I'd like to know if you want me to continue.

By the way, the whole 'thermal underwear' exchange was a call-back to the NCIS episode "Faith". Just thought it was a great opportunity to throw it in.