This is my first AU!

I don't own Rise of the Guardians or any of its characters!

~.OoO.~

His coming into their classroom that morning was the only new thing.

Everything else was the same way it'd always been. The snow was coming down. Mr. Moon looking out the window then after a moment, sighing in frustration. The class laughing over gossip, drama, and jokes.

It had been that way for days and days.

And then, just before the lunch bell rang, he walked into the classroom. Stepped through that door as silent and soft as the snow.

The class got quiet and the boy reached into his blue hoodie pocket and pulled something out. "A note for you, Mr. Moon," the boy said. And the way his voice sounded, all new and soft in the room, made most of the kids laugh out loud. But Mr. Moon gave them a look and the class got quiet.

The new boy was extremely pale with pure white hair. He was skinny too. Tall and skinny with white, white hands hanging down below his jacket sleeves. A skinny neck showed above his collar. Brown corduroy pants hugged his legs tightly, ending just above the ankle. Leather straps wound around the end of his pants and ended at the calf. Not a pair of gloves in sight, just a beat-up dark blue backpack that looked like it had a million things in it hanging heavy from his shoulder.

Mr. Moon said, "Welcome to your twelfth-grade homeroom class, Mr. Frost," and the boy looked up at him and smiled, revealing snow white teeth that made a girl in the back of the room gasp happily.

The boy's bright blue eyes moved slowly around the classroom but his head stayed still. It was like he was seeing all of them, taking them in and figuring them out. Then his eyes landed on the Guardians, sitting in the very back of the classroom. The Guardians was just the nickname that everbody had given them. The group consisted of four teens; Sanderson Mansnoozie, E. Aster Bunnymund, Toothiana Memori, and Nicholas St. North.

Tooth was a strange girl; her hair was a bright green color, except for a yellow streak going across the middle that stood out strongly against the green. She was small, hyper, bubbly, and was obssessed with teeth; she wanted to be a dentist when she grew up. That was her life's goal. Every chance that she had, she stuck her fingers into to friends' mouths just to see if they were brushing and flossing. She had friendly amethyst eyes that could see a tooth a mile away. Her outfit was a black vest that was connected to a white button-up undershirt with a red line brimming the edge of the vest.

Aster was tan, tanner than most of the other kids that went to that school, and green-eyed. He talked with an Australian accent; he often heard kids in the hallway mocking him and saying words in a fake Aussie accent. He had pale blonde hair and was tall with long legs that made him an excellent runner. He had on a plain white collared shirt and blue jeans, completed with a grey bandana tied loosely around his forehead.

Sandy was the third in the group. He was the oldest of them all, despite his appearance. He was short; only about 4'2; and had dirty blonde hair. Golden yellow eyes stood out on his light tan skin. Sandy was mute, making it hard to communicate with others, but his friends helped him by learning sign language. For the people who didn't know sign language, he just wrote it down for them on a notepad he always carried around. Sandy wore the school uniform, however, but he made it so it was a pale yellow color. A gold scarf was wrapped snugly around his neck, like the kind pilots wore.

North was the leader of the Guardians. The Russian had dark brown hair and had a large structure, but not in the fat way, more in the muscular, football player way. He was wearing a red sweatshirt, jeans, and big black boots. His blue eyes had always seen the wonder in everything, no matter what it was. North spoke many languages: English, Latin, Russian, Slovak, Yiddish, and even a little Japanese.

They were called the Guardians because they helped the community in many ways; Tooth volunteered at the nursing home and hospital, Sandy helped translate for the deaf students at the middle and elementary schools, Aster was the assistant teacher for art class, and North worked at the wood shop, making new toys for kids.

Mr. Moon quickly assigned the new boy a seat close to the front of the room, and when he sat down, he let out a heavy sigh.

Tooth had been watching the whole time: ever since he had stepped into the classroom, she had been immediately attracted to him. But something about the way the new boy sat there, with his shoulders all slumped and his head bent down, made Tooth blink hard. The sadness came on fast.

The bell rang and Mr. Moon said, "I'll do a formal introduction after lunch."

All of the kids got up at the same time, hurriedly leaving the room. Only the Guardians and the boy remained.

Tooth, being the cute, friendly person she is, bounded over to the teen and tapped him on his shoulder. She recoiled her hand in shock. He was freezing.

The new boy looked up at her and smiled sweetly before he too stood, standing to his full height. "Hello! My name's Toothiana Memori, but you can call me Tooth! What's your name?" She stated loudly.

The boy looked at her-kind of squinty-eyed- like a million things were going on inside his own head that were miles and miles away from all of them.

"Hey, Tooth just asked your name." Aster stated grumpily, walking calmly up to the white-haired teen.

The female turned and glared hard at the Aussie. "Aster! He heard me! Give him time to answer!"

Aster feebly shrugged his shoulders.

The boy glanced at the fours other teens and answered slowly, "My name is Jack Frost."

"Nice to meet you, Jack!" Tooth cheered, grabbing his wrist. She flinched at the extreme coldness of his skin. Tooth looked at Jack and studied him closer. He had freckles, barely visible, sprinkled across the bridge of his nose and middle of his cheeks. Jack's neon blue orbs bore into Tooth's amethyst ones.

Jack wriggled slightly at Tooth's touch. He tried to break to his hand away from hers, but she held fast.

Tooth blushed slightly as she realized she had grabbed his wrist without thinking and she recoiled her hand, gesturing in Aster's direction. "That's Aster. He's really grumpy, so you can just ignore him for the time being."

"Hey!" Aster yelled. "I am not grumpy!"

"You just proved my point!" Tooth giggled.

Jack's bell-like laughter sounded throughout the classroom, making Tooth stop in her tracks. She felt her face begin to heat up.

The white-haired teen stopped too. "Was I... not supposed to laugh at that?"

Tooth started to smile again. "No! I mean yes. I mean..." Her cheeks became rosy again as Jack's laughter continued.

Aster glared at Jack. He could sense this kid was trouble. The Aussie knew it ever since the kid had walked in. North suddenly elbowed Aster in the ribs, making him wince. "Why you look so angry, Bunny?"

Aster shot him a dirty look. "Don't call me that." He turned his attention back to Jack, who was still laughing along with Tooth. "Jack seems like the kind of person who would get in our way and cause us trouble."

Sandy had been listening to the whole conversation. What do you mean, Aster? The small teen signed. He seems nice to me.

Aster shook his head but stayed silent.

Tooth gestured towards North. "That's St. Nick, but we just call him North." North nodded towards Jack in greeting. Tooth pointed at Sandy. "That's Sandy. He can't talk, so he just uses his notepad to communicate." Sandy signed the word, Hello.

To everyone's surprise, Jack signed back, Hello, Sandy. Nice to meet you.

"Where'd you learn sign language?" Tooth asked, amazed.

Jack shrugged. "I've been all over the world, so I've picked up a few things."

"Have you been to India?" Tooth asked while leaning in closer to Jack. She felt her body temperature lower slightly as she neared Jack.

"Yes." Jack answered.

"Russia?" North stated.

"Yup."

"Australia?" Aster said.

Jack nodded.

Where haven't you been? Sandy signed.

The white-haired teen paused for a moment before answering, "I haven't been to any of the deserts."

"Really?" Tooth asked. "I've been to all of them. Not very enjoyable though..."

Jack nodded, glancing nervously at the window; the snow had stopped falling long ago. "I have to go." He said as he began making his way towards the empty hallway.

"Hey, Jack, wait a-" Aster began, reaching for Jack's shoulder. As soon as the blonde-haired teen made contact, he pulled his hand back and yelled in surprise. "Dude, you're freezing! Did you fall into a snow drift this morning?"

Jack turned to look at him, ice-blue eyes narrowing. "No." He stated simply. "This is my normal body temperature."

Aster raised an eyebrow. "Your 'normal body temperature' feels like it's about 30 degrees lower than mine!"

Tooth interrupted abruptly. "What Aster is trying to say is that you might be coming down with something."

"No, I'm fine." Jack growled out. Everyone, excluding Jack, shivered as the room lowered a good ten degrees. He heaved a sigh and the temperature returned to normal. "I really have to go. See you later. And uh, thanks." The last word felt unused and weird as it rolled off of his tongue. Then he turned heel and walked calmly out into the hallway, turning left towards the school exit.

The Guardians all stared after him as he threw open the school doors, grabbed something that was leaning against the brick wall outside, and ran towards the forest. After a few moments of silence, Aster spoke. "He was weird."

Tooth glared at him. "He was not! Different, but not weird!"

Aster simply grunted and turned around, walking towards the lunchroom. The other three followed quietly behind him, murmuring softly to themselves.

~.OoO.~

Hope you enjoyed~!

R&R!