The next morning, Jack was up before the sun and setting up the common room to be an indoor ice ring with massive beanbags he got from the Room of Requirement placed in and there in case his fellow Gryffindor's fall over.

He was just finished and took the prime seat in front of the put out fire place which had a perfect view of both staircases.

It was Ron Weasley who came down first and because of his tired state he wasn't looking where he was going and didn't notice the ice until he was sliding over it, falling down and crashing into one of the beanbags.

"What the...?" he asked looking around and trying to get up "Jack." he said rather than asked as if he knew it had to be him who did this.

"Hey Ronny!" Jack said from his chair "Like what i did to the common room to let everyone know I'm still alive?"

"I would – woah – have liked it better *slide* if we were to be given some warning!" Ron said managing to get back up only to take one step and fall down again.

"Oh but where the fun of a surprise be if I told everyone what I was planning?" Jack said skating over to him and helping the red head up.

Soon more people came down and started sliding everywhere.

The girls, mostly, enjoyed it even if they did fall over every now and again.

The boys didn't really like and just tried to leave the tower as fast as they could.

After a couple of hours Percy made Jack stop and turn the common room back to normal with the threat of going to Professor McGonagall.

"Spoil-sport," Jack mumbled but did as he was told and went down to breakfast with everyone else.

Nodding Percy was about to leave too but found his feet frozen to the floor.

"JACK!" he called but Jack was already gone.

October arrived along with a damp chill, apparently, which invaded the grounds and school. Madam Pomfery, the matron, was kept very busy with a sudden outbreak of colds among the students and the teachers.

Her Pepperup Potion worked instantly, though it left the drinker smoking at the ears for a good few hours afterwards.

Jack had a hard time trying not to laugh at seeing this as it reminded him so much of Sandy when he was annoyed with the other Guardians.

"Next?" Madam Pomfery called as Dennis Goodman, a first year in Hufflepuff came out of the room where she had the potion.

"Do I have to Elisa?" Jack asked as the person in front of him went inside.

"Jack you might get sick otherwise." Elisa said her arms crossed, Baby Tooth sitting on her shoulder siding with her Annie behind her, giggling.

"But you know me, the cold doesn't bother me." Jack said letting off a little of his frost powers to express it.

"The cold might not, Jack Frost," Elisa said rolling her eyes "But A cold might. So when that guy who just went in there comes out I expect you to go in there and take some potion."

Baby Tooth nodded huffing a little in agreement.

"You're supposed to be on my side Toothy" Jack said glumly.

"Oh quit being a baby Jack" Annie said coming in between the two of them "Elisa and I will take it too if it will make it better. Right sis?"

"Um..." Elisa said obviously not planning on this.

Smirking Jack fired back her own words at her.

"Yeah Elisa, you might get sick otherwise."

Glaring a little at Annie, Elisa said she'll take it as well.

All three went in together to make sure they all took it.

When they came out thanks to the steam pouring out of her ears and her red hair Annie looked as if her whole head was on fire.

Elisa wasn't much better, she looked like a cloud of steam was on top of her head.

And Jack looked like a cup of hot chocolate.

o0o

Oliver Wood had been pushing the Gryffindor Quidditch team to make sure they were ready to beat the Slytherin's.

One way of him doing that was by making them practice in the worst of weathers meaning when it was time for them to head back inside, everyone was covered in mud and soaking wet.

Thinking it would be better to go to the Room of Requirement and ask for some clean clothes rather than tread mud though the castle and possibly get caught by Filch, that's where Jack went.

As he came out with is dirty gear in a bag over his shoulder he saw Peeves, the school Poltergeist.

"Hello Peeves," Jack said smiling kindly.

"Oh so you do remember I exist then Jackie?" Peeves said making Jack flinch a little at the words and the way he said it.

"Of course. How can I forget about you?" Jack asked as he stared heading up to the tower.

"I don't know, but you haven't come to see me yet this year."

"Well seeing as I don't technically know where you live in this place, you can't blame me for not visiting." Jack said smiling.

"Peeves!" someone called out making the two of them turn around to see Nearly-Headless-Nick the ghost of Gryffindor Tower some down the hall, a worried expression on his face.

"Before you say anything Nicky I haven't done anything today" Peeves said jumping to conclusions.

"No, no Peeves you're not in trouble, but I do need your help" Nick said after giving a light hello to Jack.

"Why?" Jack asked surprised. From what he knows of Peeves he's like Rumpelstiltskin – You only go to him to ask for help as a last resort.

"Young Harry Potter and I were having a conversation, and Filch came along and dragged him to his office." Nick said getting to the point.

"So?" Peeves asked "It will teach him not to be dumb enough to get caught."

"So..." Nick said ignoring how rude Peeves was being "I was hoping you would be kind enough and help get Harry out from there."

"What's in it for me?" Peeves asked "You can't get something for nothing you know Nicky."

"Peeves, for once can't you do something nice just for the sake of it?" Jack asked rolling his eyes.

"Nope." Peeves said proudly.

"If you help get Harry out of trouble I will let you be invited to by deathday party this year." Nick said after a moment of thinking.

"Alright then!" Peeves said after some thinking of his own and went off to look for something big to drop on top of where Filch had his office.

"You sure that was a good idea?" Jack asked Nick "I mean it's your 500th this year isn't it? Don't you want it not interrupted?"

"Not really Jack. But deathday's are becoming a bit dull. Perhaps having Peeves there would help sort that out." Nick said fixing his ruff which was a bit askew.

Suddenly there was a loud *CRASH* and a louder cry of "PEEVES!"

Getting behind a door Jack and Nick watched as a sick Filch and a determined Mrs Norris came running down the corridor towards the scene.

After they passed Peeves returned to Nick and Jack.

"Done. So when shall I be there huh?" he asked beaming and hanging upside down.

"Just come when you can on Halloween night," Nick said having a feeling he might regret it.

"Okie Dokie Lokie!" Peeves said and flew off forgetting that before Nick came along he was having a conversation with Jack.

After a few minutes Filch and his cat went back the other way, the caretaker mumbling to the feline how Peeves was in big trouble this time.

Rolling his eyes Jack waited until they were gone before stepping out of the classroom he and Nick were hiding in.

Not long after that Harry, still in his muddy soaking wet Quidditch uniform came towards him.

"Harry, did it work?" Nick said coming out to see him too "I persuaded Peeves to crash it right over Filch's office. Thought it might distract him."

"Was that you?" Harry asked gratefully. "Yeah it worked, I didn't even get detention. Thanks Nick."

"Hey I was here too," Jack said making a mock of sounding hurt, making Harry and Nick roll their eyes.

They all set off down the corridor together.

"I wish there was something I could do for you about the Headless Hunt," Harry said to Nick, making Jack confused, but then he saw the letter in his hand.

He was about to comment on how they were a bunch of jerks who always make fun of the little guys, and say Nick was better without them, when the ghost stopped in his tracks and Harry accidentally walked right though him.

"But there is something you can do for me." Nick said excitedly "Harry – and you too of course Jack – would it be too much to ask... But no, you wouldn't want –"

"What is it?" Harry asked once he stopped shivering from the sudden cold attack walking though Nick caused him.

"Well, this Halloween will be my 500th deathday" Nearly Headless Nick said explaining it to Harry who wasn't sure if he should look happy or sad about this.

"I'm holding a party in one of the roomer dungeons. Friends will be coming from all over the country. It would be such an honour if you would attend. Mr Weasley, Miss Granger, and of course both Miss Elisa and Annie would be welcome too, of course – but I dare say you'd all rather go to the feast?" Nick looked at both boys hope on his pale white ghostly face.

"No. I'll come," Harry said quickly.

"Um... I'll need to think about it but I'll see if I can come too." Jack answered trying not to upset Nick.

"My dear friends! Harry Potter, and Jack Frost at my Deathday Party! And," he hesitated but still looked excited "do you think you could possibly mention to Sir Patrick how very frightening and impressive you find me?"

"Nick," Jack said wagging a finger "You should know better than to make stuff up. But I suppose we could say how good a friend you are."

Nick beamed at them both.

"A Deathday Party?" Hermione asked once Jack and Harry had finished explaining what happened after Harry had gotten changed and joined her, Annie, and Ron in the common room.

"I bet there aren't many living people who can say they've been to one of those – It'll be fascinating!"

"Um that's why it's called a 'Deathday Party' Brownie Locks," Jack said next to Ron both doing their Potions homework.

Annie was doing her own homework for Charms.

"Why would anyone want to celebrate the day they died?" Ron asked grumpily "Sounds dead depressing to me."

"Well if I were dead then I'd celebrate it." Jack said playing with them trying not to laugh at Ron's face.

"Why?" he asked.

"Because if I died before it was my time, then it would have been because I was saving my little sister from the thin ice she was trapped on that winter morning we lost her. And I'd celebrate it because for every year I would dead, would be another she was still living." Jack said quietly making a little snowflake and nodding to Baby Tooth who was comforting him.

"Oh..." Ron asked quietly not sure how to fix the mess he had made.

Thankfully he didn't have to as due to Fred and George's experiment of 'What would happen if you fed a Filibuster Firework to a Salamander' the creature suddenly whizzed into the air, letting off loud sparks and bangs as if whirled around the room.