This story is set in Harry's third year, when George and Fred have just given Harry the marauders map and told him that he can use it to get into Hogsmeade without the consent form from his Uncle and Aunt. What if Harry perused the map first and found something amiss that needed investigating? Uses ideas and parts from Disney's film frozen, which bits? Well you will just have to find out...

George clapped Harry on the shoulder one last time before steering him in the direction of the nearest staircase.

"Go on Harry, have fun whilst definitely not being in Hogsmeade." He winked as Fred carried on speaking.

"And obviously don't let anyone get hold of the map..." George joined in with a smirk as the two finished.

"Until your mischief has been managed!" With that said the two Weasleys turned in sync and walked off, their chuckles still reaching Harry as he had another look at the map.

Harry had to admit was tempted to head straight to the secret passage they had mentioned before behind the humpbacked witch on the third floor, as a glance showed that there was no-one there right now. Just as Harry was about to close the map though, some movement caught his attention from the corner of his eye, bringing his focus to the section of the 3rd floor that had been closed off in his first year for the protection of the Philosophers Stone.

The area hadn't been reopened to the majority of the castle even after the Quirrel incident, especially given all the rumours that had gone around regarding quite what the golden trio had done to earn that many points whilst he and Ron got injured, so what was a Slytherin doing there today when they should be in Hogsmeade with everyone else?

His sense of adventure screamed at him to investigate, Hogsmeade would still be there later after he had a quick look to make sure there wasn't something afoot. He wasn't as bad as Ron with thinking that all Slytherins were evil by default unless their name ended with Malfoy, but you could never be too sure...

Time skip:

Except for the obvious lack of a snarling three headed dog, the 3rd floor corridor was pretty much the same, not even a layer of dust which he would have expected from the place not being used in two years. The map indicated that the Slytherin in question was up ahead, in one of the classrooms that took up the majority of this floor. Muttering a quick 'mischief managed' to wipe the map and leave his hands free, Harry started to sneak forward whilst drawing his school cloak round him tightly. Had it always been this cold and he hadn't noticed it until now?

He could hear a muffled voice as he approached the room that sounded like singing of all things, though his attention was more focused on the light frost that covered the floor and walls around the door, what was going on in the room? Drawing his wand slowly, Harry muttered an unlocking charm and there was a small click as the door unlocked, allowing Harry to open it very quietly. The singing became clearer and Harry recognised it as a lullaby that Petunia had often sung to Dudley when he had been younger.

The classroom was a depressed lecture theatre, a semi-circle of desk rows all leading down to the main lecture floor, which was probably meant for DADA practices judging by its size and shape mimicking a duelling platform. But the normally stone floor of the lecture area had been turned into an ice rink of all things, with the layers of frost on the desks getting thicker the closer they were to the rink.

Daphne Greengrass, the Slytherin girl he had come here to check on was skating round the small rink with surprising ease, her eyes closed and seemingly doing it all on instinct. She finished the lullaby with a spin, arms out to the side and a relaxed smile on her face as her pale blonde hair twirled round in a plait. His curiosity sated, Harry was about to turn around and leave the girl to her own devices when she started singing once more and he stopped to listen to her soft but expressive voice.

"The snow glows white on the mountain tonight

Not a footprint to be seen

A kingdom of isolation, and it looks like I'm the Queen

The wind is howling like this swirling storm inside

Couldn't keep it in; Heaven knows I've tried

Don't let them in, don't let them see

Be the good girl you always have to be

Conceal, don't feel, don't let them know..."

(Taken from "Let it go" from Disney's Frozen)

It was hardly an uplifting song for Daphne to be singing, but it drew Harry in like a moth to flame and he strayed a little further into the room to listen a little better. He was so entranced that it was only when he felt the hard tip of a wand to his lower back did he realise someone had just snuck up on him. A feminine voice, quiet and serious spoke into his ear.

"Drop the wand Potter and don't try anything stupid, we've put up with enough of your heroics over the last few years." Realising how much of a disadvantage he was at, Harry did as he was told, his wand dropping to the floor with a clatter.

Daphne obviously heard the noise as he eyes shot open and she quickly came to a stop on the rink, her eyes quickly catching Harry's and her previously cheerful expression becoming apprehensive. She moved to the edge of the ice rink, grabbing Harry's wand as it rolled down the stairs to the rink's edge, Harry noticed that the skates she had been using were actually just attached to the base of some normal trainers, which she quickly removed with a flourish as the figure behind him shoved and prodded him towards the nearest chair in the top row.

"Sit down Potter, I don't trust you not to try something." Sitting in a chair and limiting his mobility whilst being outnumbered and without a wand was not exactly a good idea, but it wasn't like Harry had much of a choice. As he sat down he saw his other assailant for the first time and saw it was Tracey Davis, which was hardly surprising considering the two girls were rarely seen apart. For a short girl she was surprisingly intimidating with her wand pointing at him and a deep brown eyed glare on her face.

She was dressed in heavy outdoor clothing including a hat which contained pretty much all of her long auburn hair, a single lock escaping to hang down the left side of her face. His attention was drawn away from Tracey though when Daphne started moving up the stairs towards him, the ice thickening and spreading on the floor around her as she did so. Having never seen anything like it before Harry couldn't help blurting out a question.

"How are you doing the whole ice thing?" Tracey looked over to Daphne at his question and her glare morphed into a concerned frown.

"Daphne, you need to calm down, we don't want things to get any worse..." Daphne glared up, though at which of them was unsure before she slammed her free hand into the nearest desk, coating it instantly in an inch of ice along its upper length.

"How can I calm down Tracey? Of all the people who had to find out it had to be Perfect Potter! If we don't do something he's going to tell everyone everything by the end of the day!" Harry felt hurt at the implication that he was a gossip, especially as he didn't know what was so important to be worth spreading. He went to stand up but Daphne's ice-blue eyes fixed properly on him and he felt compelled to sit back down, though he still found the courage to speak up once more.

"What would I tell people? I didn't know that being able to create ice was that big a thing." There was a throaty giggle from Tracey at this who seemed more relaxed with the situation after what he said, though Daphne still looked worried.

"See Daphne, Potter has no idea about what is going on, so I think we can cool things down..." She chuckled at something, probably an inside joke but Daphne did not seem mollified to the same extent, placing her hands on the sides of her head in frustration.

"Sure, he doesn't know what he's seen but I bet you the moment they get back from Hogsmeade he will tell Granger and Weasley. You know the bookworm won't give up until she's found the answer, I mean it didn't take her long to work out the thing about Lupin did it? And Weasley might know straight away, he's stupid but it is one of the things that wizards teach their kids and he won't care about ruining my life if it gets him in the spotlight for a week or two..."

The comments about his friends were successfully anger Harry and he forced himself up, overcoming the strange urge that had overtaken him. A moment later he wished he hadn't as Daphne thrust her free hand in his direction, a wave of ice and cold air blasting him back into his seat and freezing him too it by the arms and legs.

Suddenly it started to make sense why the two of them didn't want it too get out she had this power, it was much stronger than anything he could come up with at this stage. He didn't find himself afraid though, the girl had obviously held back considerably judging by how she could create ice just by walking around so she didn't want to hurt him, especially by how quickly her face turned to horror at what she had done. Instead he found himself fascinated by it all, looking down at the ice holding him in place and tugging at it, only for it not to budge in the slightest.

"That was so cool! How did you do that? Is it wandless magic or something?" His reaction obviously caught Daphne off guard as her horror turned to surprise and surprisingly a small glimmer of hope.

"You mean that you are not afraid of me? Afraid of what my powers can do to you?" Harry shrugged as best he could, he had long got used to the idea that pretty much everything in the magical world could be dangerous depending on how it was used.

"Not really, you seem to have a lot of control over it, it's just another branch of magic right?" Tracey shook her head, tutting as she put her wand away, obviously not worried about Harry now he was incapacitated.

"Oh Potter, if it weren't for the fact that you are so famous I would have thought you were a muggleborn. Daphne has elemental magic, which has been controversial for centuries. Because of the trouble that the elemental mages have with controlling their powers, that ministry passed a law a century ago banning elementals from being in populated areas without severe magic restrictions placed upon them. So that means that if you tell anyone about this..." Harry nodded, the results were easily enough to understand, Daphne would be kicked out of Hogwarts without so much as a chance to say goodbye to anyone.

"Dumbledore knows doesn't he?" At Daphnes uncertain nod he smiled and continued. "Well if he thinks you have enough control then I don't see why it's anyone else's business. I know exactly what if feels like to be treated differently for something I was born with and have no control over. Though I have never seen this" He gestured around the room with his head. "Happen anywhere else." Daphne seemed overjoyed by his words, but shook her head and smirked in his direction.

"Sorry Potter but I am not giving away all my secrets. Perhaps if you're a good boy and do me some favours I might let you know." Typical Slytherin, but it was fair enough for her not to spill her secrets to him at the first meeting.

"I said I wouldn't tell anyone about any of this, what more do you want from me?" Daphne smirked at this and Harry suddenly got the feeling that he was going to regret saying those words...