An hour after Hermione and Tony had started planning, the witch popping off for her laptop quickly, the pair had head into Pepper's office, everyone else had head off to start cleaning until Hermione was free to finish it.

"Finished with your planning?" Pepper asked as she herself put down the pen that worked the holographic blueprints.

"Getting there," Tony said honestly, "Got the top 10 floors planned out?"

The blonde nodded, "Almost, though we're definitely going to be at it for a while, the added landing pads are going to need extra support, and the labs are going to need your input so it isn't screwed completely."

"Once we're at that point, I'll be ready with the input. Until then though, Mia and I are going to be working on a few other floors"

"Don't suppose you're going to tell me what you're both up to are you?" The pair shook their heads to the laughter of the blonde, "Fine but when we need you, you had both be ready to drop your jobs and getting to it."

"Would I let you down Pepper?" Hermione asked, "I'm going to add onto Jarvis also, he's rather intrigued at how magic will work with him, such a weird one."

"That he is but we love him. Will you need a room for your generator?" The plans came up again.

Taking the pen, the hybrid cordoned off a large storage room on the top floor, "I'm building a more effective one, I've been working on it for a while now so it's almost finished and should be set to power everything we need that Tony's arc reactor won't, better to not risk his reactor with the things with magic, it will either be wonderful or blow Manhattan up."

"Right, so we have the reactor power the outer lights, and basic electrical components that will have no interaction with your magical items," Tony was serious about this, he knew how badly things could go if they weren't careful, "We'll have to do some tests to see if the two can be compatible or if I should simply move the reactor to the Malibu house."

"And I'll need half a floor for the servers, doesn't matter where though, so the laundry or something will be fine, just out of the way," the witch added, "I know security is a big issue here, it will be more so considering this will be the headquarters for the Avengers, so do either of you mind if I make the arrangements? I've got the stones ready to go, I was going to ask about it before Loki showed up."

The couple waved their hands, "If it keeps us all safe, go for it. Do we need to do anything?"

"I'm going to need a drop of blood and a sample of spirit from everyone we want to allow full access to," seeing the confused look, she explained, "Place finger on main ward stone, the rune will take the blood and read your spirit, practically pain free."

"Right, well unless there's something else, how about we get these floors gutted?" Pepper suggested.

Hermione laughed and head out. It took her a few minutes on each of the 10 floors, having Tony fly her down in his suit for the ease and also so she could repair and strengthen the outer structure, but all of the floors were gutted out and ready to be turned into the main headquarters for the team.

As Pepper head out with Bruce and Jane to purchase all of the building supplies they were going to need, and the others began going through the motions of organising the floors, Hermione and Tony head to the floors below where they were.

"Did you get the blueprints?" Tony asked as they sat around the desk his sister had conjured.

Bringing up the hologram and converting it to her software, the witch broke the floors down, "Right, so Pepper has the main things that we're all going to need. The top floor will be a common room/kitchen/dining/entertainment area as well as her office and a strategy room when we get called to action."

"Next down is the training room, complete with archery ranger for Hawkeye. Then we have 2 floors of labs, no doubt one for mundane and the other for magical, Pepper is rather specific about things."

"Well she remembered to make room for me and you. She had me gut 4 floors, my hangar plus an area for your cars and a workshop for your suits," Hermione added, "Then the last two above us are what exactly?"

Expanding those two floors, Tony smiled lovingly, "My sweet Pepper has made us a research and development area. A storage area for most materials, a testing area, and a post-creation storage area. I must remember to kiss her when I see her next."

"So, we've got 83 floors to work with. We're only going to need, what, a max of 10?"

"One each, so 6 yeah?"

Hermione wavered her hand uncertainly, "Maybe only 5 in the end, should Tash and Clint ever man up. I think we'll need one for Jane's work, can't have her left out, and you are well aware that I have a huge family that likes to visit, so a guest floor. Are you sure we should be doing this though?"

Tony wrapped an arm around her shoulders, calming her worries, "The worst they can do is say no and we've just wasted time. I don't think any of them will though, we're a family and one that won't actually kill each other when in close contact with each other amazingly."

"Oh, that reminds me, we need to make that elevator and another floor for their vehicles," the witch added that in her planning, "Shouldn't be too hard to work out, even if we make it an inner elevator."

"Try for outside, just in case we need the extra floors at some stage"

They spent another hour designing before getting to work, the building supplies being delivered quickly by the hybrid's supplier, he loved her and would always get a large bonus for a Christmas gift, she'd been with him since her college days, and the house elves were pleased she was nice to them.

Up in the top floors, the other Avengers were working hard, trying to get as much done as they could before fatigue caught up to them. Jane was already out, not one for physical labour, but she was doing a wonderful job in supervising and making sure no one messed up the designs Pepper had drawn up.

"What are Tony and Mia up to?" The astrophysicist asked, she had been all but ordered to call her that, after learning her story and finding that they were practically sisters, plus being called Hermione had just sounded weird.

"Planning something huge no doubt," Bruce said from where he was holding up a beam for Natasha, "They should never been allowed together without adult supervision but we're all up here, so we should all just pray."

The assassin pulled the beam up and secured it in place, "We don't really have to worry, Nightshade only cares about her family, and that's no doubt what they're working on. Let's just hope that it doesn't involve mansions for us all, not that that would even put a dent into her bank account."

Steve was heaving a pile of carpet over to where Loki was laying it, "She knows we would never take anything that extravagant, but I'm certain she's using some of it on us all in some way or another."

Just then a blur of red and gold raced past the window and they all heard the boots of Iron Man hit the roof, Clint groaning, "What are they up to now?"

"We really don't want to know until they are finished," Thor said, getting them all back to work.