YAHF Currently a one-shot unless it is well received

I do not own Mahou Sensei Negima, nor do I own Buffy the Vampire Slayer.

The Dress was perfect. An 18th Century Noblewoman's dress that deserved capital letters. Sure it was a little bit mature, and sure it was in the anime section but it was beautiful and would make Angels eyes pop. As she carried it up to the register she saw there were other props with it, a knife held by a doll the size of its handle, a ring, and some tattoos. Leaving the other stuff behind Buffy put the dress on the counter.

"Hello?" she called not seeing someone there.

"Oh hello, I'm afraid I was helping another customer in the back, poor boy wanted to go as just a soldier." Said a voice with a strong British accent.

'I wonder if that was Xander. And if it was I wonder what he might be going as.

"Oh hey Buffy, I just got a great deal on this costume, it's a teacher from some anime," he said while setting down a business suit with a pair of glasses.

"Hey Buff, I just found this costume I could wear, it's a child genius from Wales who goes to teach in Japan, it seems pretty cool I might have to hunt down the show, or find some of the books."

"Well as long as it won't scar the kiddies Herr Snyder can't get onto us about it too badly."

None of them noticed the next customer coming up to the counter with a Miko's outfit and a rifle

MSNBTVS

Standing there in the middle of the street Evangeline looked around. Apparently she was now some two or three thousand miles from where she fell asleep in Mahora, in her adult form with all of her powers accessible. The only problem that she could see was that she was in some sort of quasi adult form that wasn't hers. Oh several things were right but she could feel the remnants of something that once was powerful enough to take her on. Apparently whoever's body this was had been possessed or empowered by some once powerful being and still had the imprint of power. But that was it, some empowerment: no magic, no Ki, and minimal training with only the power imprint keeping her in shape and fighting form.

Without her reserves she was down to very few options, this wasn't her body and she was not about to use magia erebia while in someone else's body unless the situation was so dire that the world would be destroyed; evil she may claim to be but she had standards damn it and if she was going to possess someone against both of their wills she was going to return the body in as close to the same shape as she got it in, if she were on the other side she would expect the same, and if she didn't get it then she would want to have words with whoever damaged her body while she was away.

With a quick check of the hidden pockets that should be there she found a couple hundred feet of her special wire that she used for her puppets and for her least used weapon, mainly because in her own body she had so many more options.

"Hello ma'am, do you know…Shishou, what are you doing here? Where is here? Did you get older?"

"Boya, calm down before you break something, which would be rude since that isn't your body." Eva answered not even paying attention to the voice, until she realized it didn't quite sound right. It had the about the right pitch but the depth and various other tones in it added up to close but not quite. Turning to look had her chuckling, not giggling, because evil never giggled unless it was an insane evil; which she most emphatically was not.

"Oh thank God, I was worried that someone had done some sort of spell which stuck me with this body which would cause about two thirds of the class to turn homicidal and…"

"Boya breath, whoever's body that is must have had an impression on you, I have never seen you act like this in the time that I've known you."

"Neither have I, and I have known him a little bit longer than you Eva."

"Looking up at the streetlight she saw a man about six feet tall with his hands in his pockets and a gleam of light from the lenses of his glasses.

"Takahata what are you doing here? Do you have any clue what is going on, does anybody?"

"No although I feel younger than I have in years."

"Well who else is going to show? That gorilla? The shoutacon? Zazie?"

Ting!

Using reflexes she wasn't sure she had in this body Eva launched herself back. She didn't have her regeneration, and she wasn't going to test a rental against gunfire.

"Relax, I aimed to miss, if I hadn't you would be dead right now."

"Taicho, nice to see you, do you have any ideas about our situation?"

"No, but I do know that we are sitting on a mystical convergence."

"We are? Well it seems that the majority of humans I saw were in costume while there were several fictional creatures and beings running around."

"So Boya, does that give you any idea as to what is happening here?"

"Yes it would seem that someone dressed up like us and we became our costumes."

"Deliberate or accidental?"

"Taicho?"

"Purposely cast spell or random release of magic?"

"Likely a spell, if it wasn't it would happen more regularly and very few people would be dress up from year to year."

"Well it is likely All Hallows Eve."

"Shisou?"

"I have spent some time in the states and there is a tradition to dress up as something you aren't and walk around and ask complete strangers for candy."
"Well that would make sense then, Samhain, along with a mystical convergence and god only knows what else would give you enough power to cast a spell to do this."

MSNBTVS

The next morning Giles was in the library when the children walked in and sat down. Looking at them he determined that they didn't appear to have too many issues from the night before, but decided to ask them anyway.

"Well while I am glad that I won't need glasses I think that I can still pull of IA ken and some of Takahata's weaker tricks, but it will take a lot of training to do it with regularity and for any of his better tricks I will need to get some training in how to properly use raw manna, if I don't god only knows what will happen."

"Oh um I will need to get some materials to make a proper magical focus and make sure that my disarming spell is not used unless necessary, I could probably get away with it in the cafeteria but there would be a lot of embarrassed people running around. When I get a focus built I will be able to start learning how to do physical enhancements that would be equal to the Slayer."

"I do believe a disarming spell would work wonders around here, can you teach it?"

Looking at the three snickering in front of him he cocked his head. "What on earth is so amusing, it was a good question."

"Yeah her disarming spell is a split second gale force burst of wind from a sneeze, if you're lucky scraps of your clothes remain, meaning that if you want to have a weapon it has to be natural."

"I see, well do try to keep that one unused except for emergencies. And you Buffy?"

"Well I picked up a few languages, a very in depth theoretical understanding of magic, even though I can barely use it, a mastery of Aikido, and some neat wire tricks that will keep me ahead. Oh and a bit of a Scottish Brogue."

"Who on earth did you go as last night, which sounds like a very tough character?"

"Um, her name was Evangeline A.K. McDowell, and she was a very powerful, um, being."

"What was she?"

"Not exactly a vampire?"

"Explain."

"Well when she was about ten a friend of the family visited, one night she went to bed, got up the next morning and discovered everyone in the castle dead except for her, and she had a craving for blood. When she caught up with the 'friend' a couple of centuries later, she was fairly certain he was dead, and no I am not going into details, I wish I didn't remember some of the things that she went through."

"Well at least I'm not the only one who went through something weird last night."

"Cordy, your clothes are so, so, so practical! I mean that they still look great but there is no…"

"Cordy, what did you just do?"

"Well it's a technique from China where you flick coins at a target. Non-lethal and very effective at shutting someone up."

"You were Mana weren't you?"

"Yes."

"How much to hire you to do some patrols? I'll save up my allowance so you can buy your preffered gear."

"This town is overrun by creatures that give demonfolk a bad name, I'll do it, but once one of you figures out how to make ofuda I want a free supply in return."

"Deal."

And shortly thereafter the Mayor suffered a sudden accident, a four ton chunk of hail fell on him while he was preparing a virgin sacrifice to some unknown demon. Vampires kept coming to Sunnydale only to get destroyed by a spirit warded bullet, and if they managed to get past that, they wound up getting struck by the Titanslayer wielded by the Kami no Raijen, and the few that managed to hide from those two found themselves facing the new queen of Sunnydale, the Maga Nosferatu, the Dark Gospel, the queen of ice and darkness Evangeline A.K. McDowell.

(AN) My first fanfic, written in about an hour and a half, constructive criticism preferred. Also the first crossover of Buffy and Mahou Sensei Negima.

Some terms that are not nessacerily familiar to Buffy Fans.

Shishou-Master, I am not sure if this is the term that Negi was supposed to call Eva, or if she just wanted to be called Master, with her personality it could go either way.

Boya – Eva's nickname for Negi, kind of obvious.

Magia Erebia – Magic of darkness, Eva's own creation, and totally and utterly broken. If you survive the learning process you wind up pretty much immortal, and once you finally master it you wind up with your power increased by a magnitude of 300-400.