Disclaimer: I don't own Harry Potter, Heroes of Olympus, or Percy Jackson and the Olympians.
Enjoy!
"Bottoms up." Hayden muttered, tossing the contents of the vial down her throat.
She didn't feel anything at first, just the disgusting taste of the potion, but suddenly she stiffened and convulsed, falling to the floor. Luckily, Poppy had had the foresight to cast a cushioning charm on it, so she didn't get hurt.
Three hours later, she woke up, and immediately conjured a mirror, glancing at her new reflection. She appeared to be about fourteen or fifteen years old, her features a bit softer than they had been before taking the potion. Her hair was down to a few inches below her shoulders, instead of down to her back, and she was a few inches shorter at 5 feet tall.
She would have to start a proper diet and exercise program, along with some potions if she wanted to get to an acceptable height and weight for her age.
A week later, Hayden walked into the flat that she had been occupying since she had been turned into a girl. When she closed the door, she sighed, and sunk down to the floor, leaning back against the door as she recalled everything that had happened these last few days.
The first thing she and Poppy had done once Hayden had gotten fairly good control of her younger body (shorter reach, center of balance, etc.) was to head into the muggle sector of London to find a disguise. After all, Harry Potter wouldn't be able to be out of sight for very long before the wizarding community noticed and sent out search parties.
As such, by the end of the day she looked quite a bit different than she had previously (besides the whole 'little girl' thing, of course). Her hair was still as long as it had been when she woke up after she had de-aged herself, but it was no longer an untamed chaotic mess. She had spent much more money than she would have thought necessary on hair products that could actually make a difference with her hair, but she knew that the Harry Potter persona was identifiable by those same messy locks, and she needed to separate herself from that image.
She had even put purple streaks in her hair, thoroughly amusing the woman who put them in, who was under the impression that Poppy was Hayden's great aunt, and they were going to surprise her parents with the streaks. She was wrong, of course, but they didn't mind. Poppy was more or less Hayden's aunt, anyway, and she was definitely a better aunt than Petunia ever was.
She had gone clothes shopping, too, for the first time if you didn't count being fitted for her school robes and having them adjusted throughout the years. She ended up buying a lot of dark clothing, like gothic-style dresses and jewelry. She tried to keep the lace and frills to a minimum, but like with her hair, she wanted to wear things that no one would think Harry Potter would ever wear.
At the moment it was mainly casual clothing, though Hayden would be fitted for her uniform for the Academy the next day (she had applied and been accepted within a few days). She would shop for her school supplies at that point, too, when she was transported to the location. Unfortunately, Poppy couldn't come with her, and since Hayden would be staying on campus right after, they would have to say their goodbyes. At least she was allowed to keep contact with her surrogate aunt, but Hayden would miss her.
She had managed to get in contact with her friends, too: Fred and George, Luna, Neville, Charlie, Bill, and Fleur. She had been hesitant about Hermione, wondering if she was in cahoots with the traitorous Weasley trio, but had finally decided to send her a letter with a brief explanation excusing her disappearance (though she didn't tell her the whole story quite yet). Hermione had written back, expressing her worry and grudging acceptance of 'Harry's' explanation, though she made it clear that she knew she was being kept in the dark about something.
She had even met up with the twins, to talk about what was apparently their (as in Hayden included) shop. She had needed to explain why she was younger and female, but the twins reacted as she had expected them to. In other words, they would've hunted down the trio and cursed them within an inch of their life if Hayden hadn't stopped them.
They were only slightly appeased by the reassurance that Hayden had her own plans for them, and that the two of them would be included in the planning once it was hashed out a bit more.
Once the twins had left, Hayden sighed, fixing herself a quick dinner before going to bed. Tomorrow would be a long day.
Molly Weasley scanned the streets in Diagon Alley, looking for the brat her daughter wanted to marry. Poor Ginevra was crying, 'heartbroken', realizing that her plan to become Mrs. Potter had not worked. Ronald was ranting about Harry had 'betrayed' their family, though deep in her mind Molly scoffed at the irony.
Molly fumed when she thought over the fact that Harry had suspected them, regardless of the fact that he was right. When she found him, he would pay for humiliating them like that!
She had no way of knowing that the next time she saw the person who was once Harry Potter, she wouldn't even realize it.
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