Title: Double Life

Rated: R content, eventually

Summery: Harry wake up one morning after fifth year with an unpleasant surprise. He may not be a Metamorphmagus, but he will be able to spy in Slytherin without them knowing who he is.

Notes: It's still a WIP, and I still don't know how often I'll update it. Maybe I'll try for once a week.

Chapter 1 โ€“ Strange Day

The next morning, like all mornings since the beginning of the summer, Harry Potter woke up without any prompting from an outside source. Lazily, he stretched himself. That proved to be different than the usual morning. Unless he was mistaken, his bed was bigger. Not by much, but enough that he fitted whole in the bed, even when stretching. Slowly, not sure what was happening, he opened his eyes. So far so good, he still couldn't see really well. Looking down, he saw that he was naked, so he got up and put some clothes on. They seemed bigger than before. He took his glasses and put them. They were a little loose on his face, which was strange, since they began being a bit too small a couple of years ago. He was still at the Dursley, at least. Still, his heart was beating faster than usual because of all the strange events. Since everything seem bigger, Harry summarized that he probably, for some reason, got smaller during the night. His bladder was annoying him, so he moved to the bathroom. Walking there was an exploit, because his balance seems way off. In the bathroom, when he reached inside his underpants for his penis, he found nothing. Panic taking control of him, Harry undressed, eyes closed, in front of the mirror. When he opened his eyes, he was overtly happy that the mirror was a muggle one. A wizarding one would have laughed itself silly, because it was now clear why he couldn't find his penis when he looked at himself with his glasses. He didn't have a penis. What he saw in the mirror was a small-breasted sixteen years old girl with black hair and green eyes, complete with a zigzag scar on her forehead.

***

The scream that followed could have waked up the death. Instead, it woke the Dursley up. The three of them ran to the bathroom and demanded that Harry get out right now. Still not thinking clearly, Harry got out after donning his clothes quickly. That resulted in a screaming match. Everyone was trying to scream louder than everyone else. Dudley, who was the most afraid of magic, was the first to stop. He simply fainted. Petunia was the second one. Completely disgusted with the even, she knew just enough about the wizarding world to know that even there, it was not normal to suddenly change sex like this. She quickly ordered Harry to write to "his sort" and sort it out. There was even a request that the neighbour see none of them. The screaming was enough to be asked very embarrassing questions by them, in her opinion. Still Vernon Dursley continued to scream until words could be understood in all that rage. Except that Harry didn't listen, it was all the same about him being a freak and how it was not the way to thank him for the house and food they give him, that he was an ungrateful brat. He just went to his room, closing the door in his uncle face and began writing an important letter.

***

The first thing Harry had to decide was who to write. He quickly decided that whatever happened, only three persons he would trust with this problem. Remus Lupin, as a friend of his father, would accept anything strange coming from him. Plus, he was a werewolf, so he would understand about having a secret. The second was Tonks. As a Metamorphmagus, she would probably understand the part about not feeling himself. She even was a woman, so maybe she could help him understand this body, at least until he was back to being male. The last one was simply the one who had the most chance of knowing what exactly happened to him, Albus Dumbledore. Except that the trust has been breached last terms when the headmaster had to tell him about the prophecy that he had hidden from him. Could Hedwig find any of them?

"Hedwig, could you find the Headmaster, Professor Lupin and Tonks?", he asked his owl.

She hooted in a reproachful way, insulted that he could underestimate her so much, so it didn't limited Harry's choice. In the end, Remus Lupin was the most logical choice. He didn't know Tonks that much and to disturb the Headmaster for something that could be benign seem preposterous. Now the problem was what to write. He knew that a letter could be intercepted, so there was no way he would write that he woke up a girl. It was true that it wouldn't help the Death Eater, but it could still end up on the front page of the Daily Prophet. No, the best was to ask him to come see him, without letting the neighbour see him.

***

That evening, there was a man who Apparated in the middle of the Dursley living room. Uncle Vernon was livid. And was ready to scream when the man asked what was the problem with Harry and how they were better not had hurt him.

"Remus? Are you alone?" The voice that asked the question was smaller and higher than usual.

Remus turned around and started. Nothing seems wrong with Harry. He simply looked, well, female. He even smelt female. He said so aloud. That made the Dursley nervous while it discouraged Harry.

"I'm not really surprised at that. I'm truly equipped like a girl right now. I want my male equipment back,ยป Harry told him.

Remus shifted uneasily. "Well, I don't know what can be done. I'll take you to Dumbledore. It's probably a good idea not to tell to many people about this. Go pack."

He turned around and began questioning the Dursley about the event of the day, so Harry hurried up and put everything he owned in his trunk without care to it. Then he ran downstairs with his trunk and Hedwig's cage in his hands. He almost felt in the stairs, what with the weight of his trunk and his impaired balance. Remus saw that and came to help him by taking his trunk from him. He then took a small Muggle book.

"Now that the Ministry admit that You-Know-Who's back, the Headmaster had permission to use emergencies Portkey. That way, nobody will see us."

Harry took a better hold of Hedwig's cage and took hold of the Portkey. While his uncle began to demand what they were doing, Professor Lupin activated the Portkey by saying "Hogwarts". The hook sensation began and Harry closed his eyes until he felt the ground reappear under him. He tried to stay standing, but his balance being different than usual caused him to crash on the floor. The hospital wing floor. At least Madam Pomfrey wasn't here, since the school wasn't running. Remus told him to sit down. The Portkey would have activated the ward alarm so the Headmaster would be coming about now. Harry sat down on the closest bed while the werewolf took the time to find a chair in one corner. They had to wait a while since the Headmaster rooms were far away, but finally he came.

The reaction of Albus Dumbledore said it all about the situation. He came in with twinkling eyes but when he saw Harry, he did a double take. After that, he asked Remus "who was the young lady".

"I'm Harry Potter. Except that somehow, I'm female right now."

Professor Dumbledore looked closely at Harry before declaring that it really was him.

"Curious. If it is what I think, it doesn't even run in your family. Yet, it had happened to stranger people."

Both Remus and Harry were confused by the Headmaster comments, but then again it's not something that is very special. Harry simply asked Dumbledore what he meant. Apparently, some family had the ability to create every couple of generations a Gendermagus. That was a person who can change gender at will. The persons usually discovered their ability by waking one morning the wrong gender or by trying to change gender, if the family was know to create that ability.

Coached my the Headmaster, Harry tried to concentrate on being male and he suddenly found himself exactly as he was when he went to sleep the night before, in the same clothes.

"It is rare that it happens at night. From my reading on the subject that I did when Metamorphmagus, Animagus and Gendermagus fascinated me, changing while sleeping is the body way of letting an ability be know. Once you know you can do it voluntarily, it doesn't happen anymore. So there is no need to be afraid of waking up female in the boys dormitory."

Dumbledore then looked at him with a very serious expression. The look on his face was even evaluating. Then, as if he had taken a decision, the Headmaster continued.

"There is one thing that I would like to ask from you. It would be difficult, but not overly dangerous. It could even help you, should you decide to pursue a carrier as an Auror as Professor McGonagall told me you wanted."

He looked so thoughtful about it all that Harry thought best to ask exactly what it was before saying yes.

"What is it, Professor? What would I need to do?"

"Well, we need to know the power structure of the Slytherin House from the inside. For the other House, it's easier, since they're less suspicious by nature. Worse, the other students are classifying even those who are not siding with the Dark Lord as Death Eater. Those are not trusted by those who are really siding with Death Eater and the result is that no one trust anyone."

Harry reflected on that and added to the discussion. "Then you need a spy that is not known as a Death Eater but that won't condemn them on sign to gain the trust of people from the two factions. That way, you can tell who's who. Maybe, if the war is long enough, use them in the Order when the time comes, I am right?"

The Headmaster beamed at him. "You are a bright one, my boy."

"Then, Headmaster, how can I be of any use? I'm The-Boy-Who-Lived, I hardly fit that description!"

The twinkle in Dumbledore eyes was back as bright as ever. "I only have three words for you, my boy: Gendermagus, Time-Turner and new student. Actually, that's four words isn't it? Don't you think that the Sorting Hat would be happy to Sort you to Slytherin?"

To be continued...