So, fair warning, this chapter got away from me a little. I think it came out ok, but just not the way I expected. Anyway, here's the next chapter! Hope you enjoy!
Disclaimer: I don't own Harry Potter or any of the original character, I don't even own Katherine's last name. I do this for fun and get no profit.

"What are you doing?" asked a very familiar voice. Katherine looked down from the tree she was sitting in and smiled as she saw her brother looking up at her with a raised eyebrow, "Your hands going to freeze, you know.

"Theo!" she greeted happily, pushing some of her loose red hair out of her face, "Fred and George are…studying, supposedly. They're meant to be completing Divination homework and I refused to put up with they're whining so here I am. What about you?"

"All the school works rather mundane and easy enough to get through," Theodore shrugged, "Blaise still has some to do though and Draco's continued boasting about how spoilt he is was beginning to grate even the Slytherins, though none of us would admit it."

"Not as easy as it's made out to be huh?" Katherine sighed, "Guess we've both got pretty lousy situation in respect to our image, but Blaise is nice enough right? His mother doesn't seem overly…concerned with blood status at the moment from what I know."

"Yeah, Blaise is nice enough," Theodore nodded, "It's nice to have someone to hang out with who doesn't spend every spare moment scavenging for ways to prove he's better than everyone else."

"You know you're still going to have to be nice to him, and interact with him over the Summer no doubt."

"Yeah, it'll be easy enough for he just doesn't think I'm overly talkative. So why are you in a tree anyway?"

"People are less likely to find me here?" Katherine offered with a shrug, besides the weather's getting cooler now, it's nice up here."

"It's almost December, you're going to freeze up there," Theodore argued.

"I'm in warm clothes," Katherine replied with a smile, it was nice to actually talk with Theodore, they'd been sending messages through Taman, but it was hardly the same thing. Theodore may be younger than her, but they'd always pretty much treated each other as though they were the same age, especially since their mother had died, things had been rough. Katherine turned the page on her sketch book and began a new image.

"I doubt your friends will be please if you can't help them with homework anymore because you froze your hand," Theodore pointed out idly.

"Theo, why don't like you don't like the twins?"

"They get you in trouble."

"I get me in trouble," Katherine corrected, "Fred and George are just often around when I do. Do you think if I really didn't want to do something they'd be able to push me into it. And this conversation is shared with no one."

"If you say so," Theodore sighed, "But they don't like me either."

"Yeah well, they're not exactly…"

"Katherine?"

Theodore blinked and looked around, trying to find the source of the voice while Katherine just sighed and pulled her bag up to her, shuffling through it until she found her Mirror. As she looked at it Katherine could see was still George sitting in the Common room, and not doing any work. She sighed again.

"Aren't you supposed to be working?" she asked, Theodore looked up at her amusedly as he settled against the tree.

"Yeah, Fred's just finishing his off…"

"And the Grim will rise in the darkness to claim me! None shall be able to stop its horrible power! It lurks in the shadows, waiting for the precise moment of my doom and which point it shall show itself and may merlin help those that see it! My death will be tragic and…"

"Fred! Shut up! I'm on the Mirror for Merlin's sake!"

Katherine and Theodore were both fighting laughter by this point, rather amused by Fred's 'studying'. He sounded so dramatic, and Katherine imagined it would have been even funnier had she actually been there to see it.

"Really?" came Fred's voice in reply and suddenly he was peering over his brothers shoulder. He grinned as he saw Katherine raising an eyebrow at him, "Hey Katty!"

'Katty' Theodore mouthed at her, she shrugged and he frowned. He was the only person that'd been allowed to use that nickname before.

"So, you've become an expert on the Grim, huh?" Katherine asked, Fred nodded looking immensely amused.

"It's horrible Kat, I'm doomed, completely doomed!" he informed her, "For I have…The Grim!"

"Oooooohhhhh," George called in the background, in a way Katherine imaged was meant to be scary. It was making Theodore tear up from trying to hold back his laughter.

"How horrible for you," Katherine replied, using immense skill to keep a straight face, "I hope you enjoy explaining that to your mum George."

"Fred! No!" George exclaimed, eyes widening, "Don't leave me to mum's wrath!"

"I wouldn't dream of it brother!" Fred said determinedly, "For you my brother I shall fight of the Grim itself and avoid my horrible fate! Where are you anyway Kat?"

"He got over that fast," Theodore mumbled to Katherine who chuckled easily.

"I'm in a tree," she answered Fred.

"Who's with you?" Fred frowned.

"Whoever I want," Katherine replied automatically, because it had become automatic to say things she knew would irritate him.

"Well, that's hardly fair," Fred grouched.

"And you're all about fair right?"

"When we want to be. Ok, we're coming down now!" Fred announced suddenly and the next thing Katherine knew she was staring at her own reflection.

"Well, that was polite," Theodore commented idly, "Should I leave?"

"You were here before them," Katherine pointed out with a shrug, "It's up to you really."

"If you say so," he replied grabbing her bag and sketch book as she slid from the tree.

"Thanks," Katherine nodded as she took her stuff back, carelessly slipping her sketch book into her bag.

"Katty!"

"Fred! Bloody Hell!"

Thus Katherine found herself colliding with the ground, Fred grinning over her. She glared up at him but he didn't seem to notice, merely continuing to grin down at her.

"Been having fun?" He asked excitedly, "What were you doing? Can we go do something? I was really bored!"

"What're you doing here?" George asked, poking Theodore in the arm.

"I can go where ever I want," Theodore replied haughtily, then, with a more irritated air, "Don't poke me."

"Fred get off me right now or you'll be on another trip to the Hospital Wing," Katherine commanded, Theodore nudged him in the arm with his foot.

"Please get off my sister," her commanded idly.

"Don't tell me what to do," Fred replied grumpily, rolling off Katherine and lying limply on the ground, "You can't boss me around I'm older than you."

"And yet," Theodore shrugged, "I'm going back inside, Katty put some gloves on."

"Will do," Katherine nodded, sitting up slightly, though she was leaning back onto her arm, "You take care of yourself too, ok?"

"Yeah, I'm on it," Theodore called back, giving a small wave over his shoulder. Katherine turned away and shuffled through her bags to find her gloves, she only noticed the twins staring at her once she'd finished pulling them on.

"What?"

"What was that?" Fred asked, sitting up and folding his arms at her, "And why did he call you Katty."

"That was my brother and it was his nickname first," Katherine sighed.

"Yeah, but he's a Slytherin."

"He's my brother Fred, are you saying you'd just stop talking to one of your sibling if they were sorted into Slytherin?"

"Pfft, I wouldn't have to. They'd be disowned."

"Oh, so now you think someone should be disowned if they're sorted into a different house than the rest of their family?"

"Kat, don't be like that, I'm just saying he's Slytherin. I mean c'mon they're the enemy."

"He's my brother Fred! Why does the house matter that much?! Are you saying you wouldn't be friends with me if I were in another house? You're so petty!"

"Hey, Katty," Fred tried, finally catching on to the fact that he needed to back off, George had already taken a few steps back in case Katherine let off a curse. Honestly, most people wouldn't think anything could come between Katherine and the twins, but when she and Fred went at it, it was a wonder to believe they were friends at all. George was slightly more used to this than everyone else, he and Fred both knew that Katherine had some really serious family issues so they tended to avoid it. Sometimes though, Fred just couldn't help but run his mouth, and he'd always regret it later.

"Don't call me that," Katherine snapped, turning and storming off towards the castle. George sighed as Fred silently worked his mouth, having apparently forgotten how to actually make sound.

"You walked into that one," George pointed out, "Now she's really pissed off with you."

"I didn't mean…" Fred muttered, George rolled his eyes.

"Yeah, I know that, and you know that, now go fix it," he suggested.

"Why does this keep happening to me?" Fred asked pathetically.

"Don't know, but be glad it doesn't happen when other people are around," George advised, "Imagine what'd happen if people realised how little it took to set Katherine off."

Fred shuddered at that thought and the pair made their way up to Gryffindor Tower. Once there they found Katherine sitting in an arm chair, looking very studious. The only sign that they'd had a fight was that she didn't even look up as the pair entered the room, merely continuing with whatever she was doing.

"What happened?" Angelina asked, wandering up to the twins.

"Wasn't me," George replied immediately.

"Totally accidental," Fred nodded, not looking directly at her.

"Well, whatever it was you better fix it," Angelina advised, "Remember it's a bad idea to let her dwell on things that put her in a bad mood."

The twins shuddered at that thought. Yeah, that was definitely a bad idea. George looked at Fred and cocked his head towards Katherine. Fred frowned, then sighed. It was his fault, time to go be a Gryffindor. Maybe people were right when they said Gryffindor's were idiots.

"Hey Kat…"

Katherine shifted slightly with all her paper – apparently she was studying – and had her back to Fred again before he could say anything more. Fred frowned, that was so not fair, he hadn't meant to upset her.

"Katty, c'mon…"

"I said don't call me that," Katherine cut in, voice level and emotionless. With that she pulled her stuff together, got up, and moved away towards the dormitories, "I'm going to bed."

"That went well," Lee laughed as he came and stood beside Fred, Fred glared at his friend.

"Yes, thank you for that," He snapped, flopping into the chair Katherine had just vacated.

"So what did you say to her?" Angelina asked, leaning over the back of the chair. Fred didn't answer and she raised an eyebrow, "That bad?"

"No, they're both just melodramatic," George shrugged, "I'm going to go talk to Katherine."

"Why?" Alicia asked bemusedly, "It wasn't your fault."

"Hey!" Fred snapped, "I didn't do it on purpose!"

"Yeah, yeah, we know," Angelina replied, rolling her eyes, "Do some homework. You've got to be behind in something."

"Why are you guys always picking on me?"

"Because you always rise to the bait?" Alicia suggested, laying on the sofa, "Plus you are generally behind."

As the hilarity ensued George made his way up to the dormitories, but found Katherine in one of the few shadowy areas Gryffindor Common room offered. It was small and out of the way, you could hardly tell she was in the room.

"Not going to bed then?" he asked, sitting down beside her.

"Then I'd just have to get up again for dinner, it's a chore and it makes me easy to ambush."

"Wow, we really have done a number on you haven't we?" George laughed, "So, how long are you going to be pissed off with Fred?"

"I don't know," Katherine sighed, still focusing on her sketch book. George frowned.

"What're you drawing?" he asked curiously. Katherine blinked up at him, the turned the book so he could see the page. It wasn't one of her best sketches, in her opinion, probably because it was from memory. In it her mother was displaying magic for them both while a younger Theodore watched excitedly, leaning over the table totally fixated on their mother.

"My mum," Katherine explained, pointing to the drawing, "She worked in the Experimental charms of the Ministry."

"You drew this from memory?" George asked, awed.

"Yeah," Katherine shrugged, "Some things just stick more than others."

George nodded, quietly flicking through the pictures. He knew Katherine was watching, and would take the book off him if he got to a drawing she didn't want him looking at. Eventually he came across a picture of himself and Fred in the Three Broomsticks. He remembered that, they'd all been laughing about the prank they'd just gotten away with, then Fred had made a joke about buying Firewhiskey and Katherine had smacked him over the head with a newspaper. The drawing showed Fred smiling apologetically at her while George desperately tried to keep himself from falling to the floor with laughter.

"That was fun," he noted, chuckling at the memory.

"Yeah," Katherine agreed, grinning, "And we were actually allowed in Hogsmead that time. Fred can be such an idiot though."

"Not really, he just doesn't have much stopping his thoughts from getting to his mouth," George shrugged, Katherine gave him a funny look.

"I will never understand you two," she sighed, taking the sketch book back and returning to the image of her mother.

"So, your mum," George started, "Was she a Sly…"

"She was a Ravenclaw," Katherine cut in, raising an eyebrow slightly, "She was all about house equality and stuff, then she went and married my dad."

"Well, that seems counterproductive," George frowned.

"It does, doesn't it?" Katherine laughed, "But she was happy, and she still always said that no matter what house we were in we'd be amazing. So, when I got here I just let the hat have at it and here I am."

"And we are eternally grateful for it," George replied, nodding sagely before grinning at her, "You know Fred doesn't mean it when he bad stuff against your brother cause he's in Slytherin. He's just worried you're going to end up ditching us so that you can hang out with him and the other Slytherins, because you have technically known them longer than us."

He was also just insanely jealous of how much attention Theodore got for doing very little, but George didn't think that was worth mentioning. Katherine rolled her eyes and sighed.

"Yeah, I know," she said, looking very much like she would've liked to stay angry with him a little longer, "I just wish he'd learn when to shut up."

"Yeah, because that's going to happen sometime soon," George laughed, Katherine rolled her eyes and he continued, "So, will you go tell him that if he jumps into the lake you forgive him? I think he'd deserve forgiving if he jumped into the lake at this point."

"Yes, he would," Katherine agreed, getting up and walking towards the others, "You know, if he hadn't died already."

George laughed and was about to comment when they made it to the others and noticed something strange. They both cocked their head to the sides for a moment as they tried to make sense of the scenario, after all they'd only walked off a little while ago.

"Um," Katherine offered thoughtfully, George decided this meant he should take charge.

"Why is Fred on the floor?" he asked seriously, Katherine nodded in agreement with the question.

"And why are you all on top of him?" she added thoughtfully. Fred looked up at them with pitiful eyes, head twisted at a funny angle so that he could see them while four other people lay on top of him.

"Help meeeee…" he whined, trailing off as he gave up and his face collided with the carpet again. This was too much for Katherine and George, who broke out into uncontrollable laughter.

"I think…I'll forgive him…later," Katherine puffed out between loud laughter and gasps for air.

"Probably….a good plan," George nodded, having difficulty speaking just like her.

As Christmas came nearer there was the regular talk about where everyone would be going, though this year quite a few people heard Malfoy mouthing off about how 'he felt sorry for those who weren't welcome at home' and then most everyone saw him almost continually tripping over his own feet for the rest of the day. Fred and George were immensely pleased that they'd pulled that one off. Despite this, Katherine and Theodore both wrote their names down without hesitation as McGonagall brought around the sheet. Much too Katherine's surprise Fred and George signed up as well.

"You guys aren't going home?" she asked curiously.

"No," Fred replied, "Didn't we tell you?"

"They're going to visit Charlie," George explained, "So we're all staying here."

"Brilliant, we get to spend our first Hogwarts Christmas together," Katherine laughed.

"Because that's not going to end horribly," Alicia sighed.

"Actually, it probably won't," Angelina said.

"Yeah," Fred and George nodded, "What's the point in pranks without lots of people to watch them?"

"Really? This is your argument?" Alicia frowned, "Oh well, it's your lives."

"You're so supporting Alicia!" Fred cried, "But, seriously, why would you doubt us?"

"Because you prank people to entertain yourselves," Alicia replied seriously.

"I think I take offence to that," Fred announced, "Gred, I think I'm offended."

"See, like that, you're the only ones who find that entertaining."

"I quite agree Forge," George nodded, "I feel offended also."

"Oh, honestly," Alicia sighed, "Katherine can't you…Where'd she go?"

"Guys, I'm going for a walk!" Katherine yelled from the doorway, "Have fun!"

"Katherine!" Multiple voices called after as she ran out towards the lake.

The Christmas holidays were always immense fun, and it was really hard to get bored with Fred and George as your best friends. Katherine found herself running around with them pretty much every day, though sometimes were more fun than others. Including 'The Day of the Abominable Snowman', as it was named. The other Gryffindors were up in the Common room and all the other houses were expected to defend themselves.

"Abominable Snowman!" Fred yelled, running full pace down the hall with George and Katherine.

"He's going to eat us all!" George added, just for a bit more melodrama. Suddenly Peeves was floating above them.

"What are you wee students doing throwing up a fuss?" he cackled, "Tell Filchey I should."

"Hi Peeves," the three students called together and, darting around a corner they stopped and looked up at the Poltergeist.

"It's just a little bit of racket," Fred assured, "Nothing that'll kill anyone."

"Unless we screwed up the spell," George added. Peeves cackled loudly, he'd come to enjoy the twins jokes.

"Snape's on his way," Katherine announced, tucking the Marauders map away.

"Brilliant!" the twins grinned evilly. Suddenly a loud roar echoed through the castle.

"Well, you definitely made it fast," Katherine pointed out as the three students hid in the shadows. Snape stalked past, muttering darkly under his breath. Fred and George pulled faces at him. A moment later he was backing up the hall, wand raised and eyes sharp. Another roar sounded Peeves and the three kids could now see a very large, rather pissed off looking snowman moving towards Snape.

Peeves cackled loudly, flying over the creatures head. Evidently the snowman disliked this, as he proceeded to swipe wildly, roar again and continue his fast paced rampage through the castle. Though Snape was blocked from view they could hear his heavy footsteps running down the hall, matching by Peeves' gleeful cackling.

"Well, that was fun," Fred laughed.

"I want it noted that its movement make no logical sense," Katherine announced seriously, though she was grinning, "The sticks should break and, even though it's basically sliding, it should not be able to move on nothing but a ball of snow."

"Dully noted," George nodded, "So, shall we head to the kitchens?"

"Sounds good, they'll give us something warm to eat," Katherine nodded.

"Very well! To the kitchens!" the twins announced in unison, Katherine chuckled then took off a head of them.

"Last one there has to profess their love to Dumbledore!" she called, waving the map in the air as she did, "Don't get caught!"

Fred and George looked at each other then, together, yelled, "That's cheating!" and took off after their laughing friend.

Christmas found Katherine being dragged up to the 1st year boy's dormitory. She'd already opened her presents and, wearing her Weasley jumper, had headed down stairs, only to find herself being pulled back upstairs to find Ron and Harry.

"You know you could've just asked," Katherine sighed, realising they were planning a big show.

"Yeah, but where's the fun in that?" Fred asked before entering the room.

"Happy Christmas!"

"Hey, look — Harry's got a Weasley sweater, too!"

"Harry's is better than ours, though," said Fred, holding up Harry's sweater. "She obviously makes more of an effort if you're not family."

"Why aren't you wearing yours, Ron?" George demanded. "Come on, get it on, they're lovely and warm."

"I hate maroon," Ron moaned half-heartedly as he pulled it over his head.

"You haven't got a letter on yours," George observed. "I suppose she thinks you don't forget your name. But we're not stupid — we know we're called Gred and Forge."

"What's all this noise?"

Percy Weasley stuck his head through the door, looking disapproving. He had clearly gotten halfway through unwrapping his presents as he, too, carried a lumpy sweater over his arm, which Fred seized.

"P for prefect! Get it on, Percy, come on, we're all wearing ours, even Harry got one."

"I — don't — want —" said Percy thickly, as the twins forced the sweater over his head, knocking his glasses askew.

"And you're not sitting with the prefects today, either," said George. "Christmas is a time for family."

They frog-marched Percy from the room, his arms pinned to his side by his sweater. Katherine grinned now that all that was out of the way, easily following after the twins. On the way down she smirked at Harry.

"You realise this makes you an honorary Weasley right?" She asked, raising an eyebrow, "You're stuck with these nut-jobs for the rest of your life. It's lots of fun."

Harry chuckled, though he looked a little over whelmed, and Katherine headed after the twins again. Christmas at Hogwarts was definitely one of the best things in existence, the house elves outdid themselves, the crackers were as amazing as always, and the teachers provided excellent entertainment.

When everyone was finally ready to leave they were all laden with stuff (except people like Percy, who didn't want it). Fred was wearing a rear admiral's hat, George had gotten a jester's hat from a cracker with Percy and Katherine had a pirate's hat. This, of course, led to Katherine and Fred having a very dramatic 'sword' fight while George related 'The tragic Tale of the Admiral's Death'. Though A few people had already left the performance was met with much laughter and some sage cheering from Dumbledore.

They spent the rest of the afternoon on the grounds having an epic snowball fight. In which Katherine and the twins remained in character and Theodore snuck around helping her out. It was heaps of fun, and once everyone was tired of the snowball fight they returned to their Common rooms. Katherine watched the other boys play chess as Percy chased the twins around for stealing his prefect badge…again. She thought maybe she'd stay at Hogwarts more often.

Well, I think this turned out ok. Let me know what you think! Begging for reviews here.
Also, for those who were wondering, I update every other Wednesday. Sorry, but it's enough time for me to get writing done and not have my updates be hectic and all over the place.