A/N (jennfaa here): BWAHAHA! This is the EPIC brainchild of special-rock and moi. We'll be taking turns writing this; so I'm writing this one and special-rock will be writing the next and so on and so forth. Personally, I want to apologize for any upcoming OOCs which will probably pop up here and there, especially by me in particular, because I'm cool like that.
The characters' personalities are taken from about CoA/CoG, even if the first 5 paragraphs are quoted directly from CoB (please, to all you scary lawyers who are reading this, don't hunt me down; I mentioned it, so it's technically not plagiarism!)
Oh, and before I forget, neither I nor special-rock own TMI or Harry Potter. We're just cool kiddies who are actually an aquatic vampire who lives in an inland ocean and an ex-Shadowhunter turned warlock (I'm the warlock, by the way). :D

PROLOGUE

"The funny thing about mundies," Jace said, to nobody in particular, "is how obsessed with magic they are for a bunch of people who don't even know what the word means."

"I know what it means," Clary snapped.

"No, you don't, you just think you do. Magic is a dark and elemental force, not just sparkly wands and crystal balls and talking goldfish."

"I never said it was a lot of talking goldfish, you-"

Jace waved a hand, cutting her off. "Just because you call an electric eel a rubber duck doesn't make it a rubber duck, does it? And God help the poor bastard who decides they want to take a bath with the duckie."

"You know what?" Alec cut in, "We don't do magic. We just use magical weapons."

"How does that even make any sense?" Clary asked. Her question didn't get answered though; three barn owls had flown in through the open window. They circled the room once and each dropped a letter at their feet. As swiftly as they came, they flew back out the window and out of sight.

No one spoke for a while; they all just looked at their feet. Jace looked down. The envelope was the old-fashioned parchment type, sealed with a blob of wax on the back. He reached down and picked it up. The wax had an imprint of a coat of arms on I, emblazoned with a badger, a raven, a lion and a snake. The letter 'H' was imposed over it.

He turned it over and looked at the address. It read:
Mr. Jace Wayland
The White Room
The Residential Wing
New York Institute for Nephilim
NY11210 USA

Jace frowned. "What is this?"

Alec shrugged. "I don't know. They sure have the location of our bedrooms exact though."

Clary gasped. She had turned over her envelope and she recognised the seal. "It's from Hogwarts!"

Jace raised his eyebrows. "You're telling me that this was taken out of a hog's warts?" he shuddered, imagining what the scene would have looked like.

"It's Hogwarts, Einstein," Clary sighed. "Don't take it so literally. But seriously, haven't you read Harry Potter?"

"I'm not Einstein, although I have been told that I could be his descendant. And no, although I am extremely literate, I have not heard of this 'Harry Potter' business. Is it any good?"

Clary dropped her letter in shock. "Is it any good?" she asked incredulously. "That's like asking if Magnus wears glitter and looks good in it!"

Jace frowned. "Um, okay then." He sliced his envelope open with the seraph blade he had been holding and read the letter. "Whoa, we have to go buy a uniform? And we have to go to England?"

Clary scoffed. "Yeah, and we have to go to Diagon Alley to buy all our supplies as well."

"Wait, we have to go diagonally?" Alec asked, quizzically.

Clary groaned, slapping her palm against her face in frustration. "No, you fool. Diagon Alley."

"Oh, right." Alec peered at his letter. "Wait, we'll be starting on September the first? That's like, three weeks away! And we can only come back for Christmas and other important dates!"

Jace gasped. "So we have to spend a whole year at this English boarding school? For wizards and witches? They don't even talk like us!"

"So?" Clary retorted. "It'll be fun! That'll teach you for speaking too early."

"Speaking of speaking too early," said a female voice behind them. "I got a letter too." Clary turned to see Isabelle standing in the doorway, holding an identical envelope. "It seems that we're all off to learn magic at Hogwarts!" Her perfect teeth glittered as Isabelle flashed a grin.

"You're kidding me," Clary said, "You too?" Isabelle nodded.

"Yup. I got this letter not too long ago, and I thought I'd show you. But then I heard you guys talking about it in here, so that's how I knew." Isabelle paused thoughtfully. "I wouldn't be surprised if Simon got a letter too."

"Simon?" Clary screeched. "Oh man, next thing you know, Luke is going to be a teacher there and we'll be seeing Sebastian there as well." She rolled her eyes.

Suddenly, Clary jumped as the phone began to ring, its trills echoing down the hallway from the library and into the weapons room, where the four were standing. She looked at Isabelle, who was examining her nails coolly.

"Do you want to answer that? Since you're the closest thing we have to a mundie here, I'm pretty sure that you'd be the best person to operate that thing." Isabelle cocked her head to the side.

Clary opened her mouth to protest, but the phone's ringing cut her off. With a hapless look at Jace, who merely shrugged, she walked down the hallway and into the library. The phone was sitting suspiciously in the centre of the table. Clary slowly approached the table and picked up the receiver.

"Hello?"

"Hey Clary, it's Simon!"

Clary's eyes widened. "O-o-oh. Hey Simon. Is something wrong?"

"No!" Simon exclaimed. "It's everything but! I just got a letter from Hogwarts! Remember how we used to always go on about that! So now we're going to learn how to use the Avada Kedavra curse!"

"Wow, Simon, really?" Clary said, shocked yet ecstatic. "Well, guess what? Jace, Alec and Izzy got a letter each too! And so did I!"

"Really? Wow, that's awesome! Now I can learn something that I can beat Jace in! Man, this is so like D&D where you get this epic upgrade and all your enemies get owned!"

Clary laughed. "Well, I guess it is. So we'll see you soon, yeah?"

"Okay. Later, Clary!"

Clary put the receiver back down and turned to head back out of the library, when a shape unfolded from a nearby armchair.

"So, did your vampire get a letter too?" Jace drawled.

"Yes, he did, Jace," Clary snapped back.

"So it's the whole gang heading off to England, is it?"

"Yeah," Clary nodded, "It's going to be awesome! But first, we need to get ourselves over to England in the first place."

A/N (still jennfaa): And so, our little crew of Shadowhunters/vampire are off to Hogwarts. They might be put with first-years, they might get put in whatever year they're supposed to be; seriously, only time will tell. Oh, and what special-rock will write in the next chapter too. HAVE FUN, HUN! OH, and do review, suggestions are welcome (for me, anyway).
Title will probably change too; we haven't actually decided/discussed it yet.