Disclaimer: I don't own either harry potter or x-men

Chapter 1

Changes

Harry stifled a groan as he woke up. The strong smell of disinfectant burned his nose worse than a hot breath of ash ever could.

'I must be in the hospital wing,' he thought, 'and for a good reason to.'

His entire body ached like he had been subjected to a few dozen rounds of the Cruciatus Curse. Harrys' entire body felt like it was on fire. From the top of his head down to his toes he couldn't even feel anything but the burning sensation that seemed to linger in all of his muscles, tendons and ligaments.

Harry winced at the noise as somewhere in the distance a clock struck two am.

Placing a hand to his throbbing head he was surprised to not that his hair was not only a lot thicker but was also longer than before as it now reached down to the bottom of his shoulder blades. Closing his eyes he struggled to remember what had happened.

But after having watched Sirius fall through the veil and starting to chase Bellatrix his only memories were of a lot of shouting and a red haze that had taken over his vision, along with a feeling of pure rage and a loss of control of his body. The feeling was different but still eerily similar to the effects of the imperius curse but replace the feeling of bliss with that of pure rage.

Just then he heard people walking by the door to the hospital wing. However as he glanced at it he realised that the door was closed, 'Probably just prefects doing rounds' Harry mused to himself before he realized that his bed was as far away from the hall door as possible.

Taking a breath he sniffed the air and found that his sense of smell had also enhanced so that he was able to smell the faint smoke emitting from the torches and the scent of the various potions that Madam Pomfrey kept in the locked cupboard (at the other end of the ward).

Harry also noticed that the only light in the room came from the two torches on each side of the door that opened to the hallway as it was a cloudy night and there was no light from the moon or stars. Harry did not realize the fact that he could see as clearly as if it was a perfect sunny day outside for the moment being. However when Harry moved his hand to rub his temples he realized that he didn't have his glasses on yet his vision even better then when he was wearing them.

Nearly jumping out of his skin when something flicked against his leg he glanced down and noted that it was only his tail that had hit him.

'Wait a second, my tail?' He thought as he took a closer look at the thing that had brushed his leg, and noting that what he found was in fact a tail and that it was connected to his body near his coccyx (tailbone). That and along with the fact it was covered in some sort of tan fur that he belatedly noticed was covering the rest of his body by the feel of it. There was also a tuft of black hair at the end of the tail that was the exact same color as the hair on his head.

Glancing around the wing he found a mirror across the aisle. Deciding to stand up and take a look at himself before someone came to check on him. Pulling the blanket off he realised that he was only wearing a pair of shorts and that he also had curved claws protruding from between his toes, very similar to the ones on the velociraptor in the move Jurassic Park his cousin had become obsessed with two years ago. Only instead of having only one main claw there was one between each toe for a grand total of eight claws on his feet. The claws looked to be made from bone and by experimenting he found that he could move them around quite easily. Then there was also the fact that his feet seemed to have gotten a lot longer and looked like they were meant to be on a cat and not a person.

When he was finally standing and able to stay standing he was shocked to note that he stood on his cat like feet much like a cat would, standing more on the balls of his feet and his toes then anything, with his heels a good thirty five centimetres (fourteen inches) off the ground. Gathering his balance with some help that came with using his tail he walked unsteadily towards the mirror noticing as he went that his claws (or should he say talons) made a light taping sound on the stone floor as he walked.

Looking in the mirror he felt his jaw drop. Not believing what he was seeing at first as standing there looking back at him was someone, that by all means looked like they had a bad experience with polyjuice witch had a lion's hair added to it instead of a persons.

The difference was that this body felt normal to him. In all honesty this body felt more normal to him than the one he had used for the almost sixteen years he had been alive. Looking down at his feet he felt perfectly balanced safe and secure never mind the fact he was only standing on his toes he felt like he could run across the roof of Gryffindor tower and not fall off.

His legs were heavily muscled and shifted with each tiny movement he made to keep him perfectly balanced along with his tail that kept twitching slightly as if it had a mind of his own.

The muscles on his stomach and chest were well defined and toned judging by the set of six-pack abs and extremely well defined chest muscles he was now sporting.

His facial structure hadn't changed a whole lot except that his nose had become slightly wider and flatter looking like a cat's nose but all things considered he could understand why.

His hair was still the same messy black that it always was but had tamed a bit as it now reached the base of his shoulders, although some of the strands still managed to stick up a bit before falling down again.

Taking a closer at his face he noticed that the white in his eye was completely gone and was replaced by the emerald green that he had inherited from his mother. The pupils were very large and round however something gave him a feeling that they would shrink into slits in a brighter light.

When Harry opened his mouth he saw that his canine teeth had become pointed and he could feel that his molars had sharpened as well. Bring his fingers up to feel his teeth he jumped a little as he cut his thumb open on them, pulling his hand back in surprise. Harry watched in amassment as his hand healed up before his eyes, mesmerized by the tissues knitting themselves back together with amazing speed. Taking a closer look at his hands and arms he noted with a sigh that they looked the way they were before with the only exception being that they were covered in the same tan fur that coated the rest of his body.

Walking back to his bed and laying against the head board he closed his eyes and focused on his body from the burning in his muscles, to the extra hair on his body and everything else, trying to understand everything that had happened, as well as trying to get use the tail that was flicking back and forth seemingly on its own accord. Meditating on his body he felt a new set of muscles and ligaments that he didn't remember from before in his for arms. At least that he didn't remember having to re-grow the bones they were attached to in second year. Holding his hands up Harry slowly tried flexing the new muscles. Barely holding in a yell of pain as he felt muscles and skin cut and the bones in his wrist break from the inside he gasped in surprise as he saw three white bone claws much like the ones on his feet slowly emerge from between his knuckles on each hand. Studying them he tried moving them up and down, and soon came to the conclusion that he could only move them out and in, and not up and down like he could with his feet. Relaxing his muscles and withdrawing his claws Harry feeling them slide back home between his ulna and radius he laid down to try to get some sleep.

Closing his eyes while trying to block out the pain and get some rest as the thought of sleep with the amount of pain he was in would be near impossible. 'What has happened to me this time? Though more importantly what's going to happen next?'

Giving up on sleep after another two hours Harry decided to go for a walk around the Hospital Wing.

Standing up gingerly Harry started to walk up the hallway but was surprised when he was stopped two feet after he passed the aisle that the door to the bathroom was. Running his hand along the invisible ward he walked the width of the hall and finding that it went from wall to wall. Turning Harry walked into the bathroom and after a quick look left. He then walked towards the other end of the hospital wing only to be stopped just before he reached Madam Pomfery's desk, and the large window behind it.

Going back to his bed Harry sat at the foot of it and looked out the window to the east as he watched the false dawn start to give way to the sun as it started to rise.

A/N for a picture that is close to what he looks like look up BanchoLeomon with black hair and green eyes, no scar over his eye but with the lightning bolt one and that he still has a human shaped mouth not a small muzzle that the picture has.