It all started out as a normal day until the weird faceless creature attacked Harry Potter, swinging its misshapen clawed appendages. Harry simply ran, that's all he could do really as he was busy lugging his 7th year books and items with him after purchasing them from Diagon Alley. The thing followed him, yelling something until Harry ran into some abandoned Ikea shop, which was the start of all his troubles.

He ran further and further into the building, not caring where he went as long as he stayed ahead of the thing. The thing kept chasing him until he heard a loud cackle and the least likely of people killed it.

Bellatrix Lestrange, the most insane witch on the whole of Planet Earth.

"W-what was that?!" Harry gasped, not really scared of the appearance of the witch who was ten years his senior looked way younger than she should.

Of course, she had been missing for ten years after the fall of Lord Voldemort.

"One of the many "Staff members" around here, Potter," She said, looking around calmly before dragging him further into the shop.

"Where are you taking me?!"

Bellatrix hushed him, clearly not in the mood for someone speaking now. It was where they got to the surprised him the most, the witch had somehow used magic to create some type of fortress. Why though? She pulled him inside and closed the iron gate behind her.

"I'm only going to say this once," She said, clearly something was agitating her badly, "This place isn't normal, I've been stuck here for ten years and I've gotten sane from it. Now, I'm going to have to teach you and keep you safe."

"H-how? And why should I trust you?" Harry asked, not sure now but the older witch gave him a look.

"Because I found out the hard way that this place isn't normal, its infinite. Magic hasn't done this, its beyond normal. If you want to survive, you'll have to learn how to. Magic is very effective in here, like its amplified and this structure? Its all magic I've made years ago and it should of fallen." She said, motioning to the fortress.

Harry could only nod before Bellatrix had him go to the spare bedroom to prepare himself for tomorrow.

Bellatrix Lestrange was many things, but the past decade of living in this nightmare was enough to drive her insanity out the window. Ten years of loneliness, no other magical contact until the Boy-who-lived showed up in this place. Yes, she knew of the Boy-who-lived, she had been under the control of Voldemort after all. She had gotten up early and started working on a few new extensions of her base, moving the solid five foot thick wall around the cafeteria section that her base was near.

Such feats of magic would of been impossible but here, like she told the boy, was amplified over time. Her magic had gotten so powerful but it still didn't help her find a way out, which was so frustrating. The endless sea of furniture, crates and other items was mind boggling. Of course, it didn't help that the "Staff" of this infernal place were like inferi. They had attacked her place constantly for a whole year but couldn't break through, thankfully.

Looking back on her decade of survival, she noted that there had been others in here, muggles mostly. They found her place and begged to be let in but she hadn't, telling them that her fortress was already under constant attack as it was. So they left, realizing that maybe they shouldn't make it worse. Good thing too cause after a party of them left, a massive Staff member attacked and Bellatrix fought it all night.

She didn't want that to happen again.

By the time Potter woke up, Bellatrix had gotten her base around a few of the many self serving food stations. She twirled her wand then turned to see a bedraggled teenager looking at her, clearly not completely up.

"Shower is on the left, make it short." She told him before going to check over the area on the wall.

She noticed nothing, of course, that was obvious. Still, one couldn't be too sure from the lack ever restocked isles of furniture. Oh, how she wanted to use fiendfyre to clear a path through the store and leave her mark. But she couldn't yet, not yet. Climbing down, she looked at the base she had built so many years ago.

It was mostly the wall, but inside, it had a housing building, a shower, a garden, the new cafeteria zone and a magic arena for practicing magic. The garden had been the hardest to get cause one, this place was dirt free and two, any plants she did find were dead or withered away. It had taken her four years to find the right spell and rune combination to summon the needed garden materials. Since then, she had also had to use this for any books so she could add to her fortress, but the results varied.

She had done it yesterday and it seemed like Harry Potter had been brought in. She had wanted books, not another mouth to feed. But since she had him here, might as well teach him.

Harry got out of the shower as Bellatrix was eating some breakfast, which consisted of fries, a vegetable mix and some chicken. The boy was thin and needed some meat on his bones pronto.

"Potter, after you get dressed, get some breakfast." She ordered, the teen nodded and quickly when to do that.

Quickly finishing, Bellatrix pulled out on of the many books she had gained over the years. She had some ideas on creating guns for this place, maybe starting a market for them. It would mean that this place could defend itself more thoroughly. But she was still only looking over the book, which was on how to construct said weapons. The bullets would be easy to transfigure, but the bigger weapons would need runes and a lot of transfigured parts.

Of course, she could just make one weapon and see how long it lasted. She snorted, that was a stupid idea.