You know, sneaking into tech-savvy, high-security towers is not easy. At all. Yet, here she was, risking her freedom again, just to cause some havoc. Well, she was actually trying to undo the mischief she may have caused, even if it was caused a few years ago. She paid the grouchy cabbie, and stepped out of the car. She took a deep breath of fresh air. Of course, she was in New York, so the air was actually polluted and not at all fresh, but it smelled like fresh air after getting out of that stinky cab. She looked like a tourist, with her worn duffel bag swung over her shoulder and the way she stared up at the towering building before her. Stark Tower was even more impressive in person, and she marvelled at it. She was there to experiment, something that she liked to do to push herself to find out her limits.

It would be a challenge to get in and return the item she had stolen without getting caught, but she liked challenges. Without them, her life would be pretty boring. But then again, she was special, and only the hardest of tasks truly challenged her. Hey, maybe this time she'll get caught on purpose just for fun. Snorting, she shook her head. Bad idea; this was Tony Stark and SHEILD that she was messing with, and getting caught would probably mean jail time, and she wasn't up for any more of that after last month. The only thing that truly worried her was the fact that she wasn't very experienced in what she was attempting to do.

She waltzed right up to the tinted glass doors, and just as some employee swiped an I.D. card, she went in. She had walked into a modern reception-type room, with a desk at the front and quite a few people milling about, all wearing an identical uniform of a dark blue, body-hugging jumpsuit, the SHEILD. logo decorating the sleeves. She left her duffel bag in a corner, hidden behind a plant. No one had noticed her of course. She continued to make her way to the elevator located on the other side of the large room, and slipped inside. It was empty, which was a bonus. This was much easier than she thought it would be. Then again, most people can't see someone if they are invisible. Everything was happening according to her plan, but, knowing her luck, something was bound to go wrong.

Her hands started shaking and beads of nervous sweat were forming on her forehead. Willing herself to remain calm, she took three large breaths. Selecting the floor that she knew the lab was on, she leant back on her heels, the quiet elavator music beginning to irritate her. This wasn't good; if she let her nerves get the better of her, her mischeif-making plans could crumble around her like a badly built dam. The glowing numbers in the lift seemed to crawl upwards at an agonisingly slow speed, like they were trying to annoy her. Finally, the electronic voice stated that they were at the lab's floor. Even so, the doors didnt open. Her eyebrows furrowed in confusion. No no no, she thought. It can't be ruined now!

"Clearance needed. State your name, occupation and clearance level," the voice echoed through the mirrored lift, startling its only passenger into action. She cracked her neck from side to side, and reached a hand out to the elavator doors. There was a loud groan, and a few sparks, but the doors opened. She sighed, I must stay calm. With a new-found confidence, she walked briskly into the near empty hallway.

It was very modern, so much so that it seemed like it was from the future. But that was the least she could expect from Stark. It looked nice, and was probably extremely energy efficient, which was something she approved of, but, the security definitely disappointed her. Then again, it was probably really hard for even the smartest of scientists to keep a place secure when there are young women running around with the power of invisibility and who knows what else. She had passed about a dozen or so doors when she came to one with an engraving on it.

"Tony Stark," she read, murmuring under her breath so no one would hear her. There was a small window in the door, and someone had stuck a sign onto it from the inside, for passersby to read. "Do not come in or I will get security to throw you out of a window!" Her eyes widened at the somewhat violent message. She breathed out a laugh. Should she worry? She doubted he'd go through with the threat, but it was safer to just calm down a bit and remain focused.

She closed her eyes and did the breathing excersises that she was so familiar with. In, out. In, out. In, out. Feeling relaxed, but still ready for action, she opened her eyes and surveyed the entrance to the Lab. She could see Stark pottering around with some tool or what not, and occasionaly looking up at a computer screen or barking orders to Jarvis. He seemed like he needed to do breathing exercisies, or at least a large cup of coffee. He had bags under his eyes from sleep deprivation, and he was wearing a grease-stained gray shirt with black sweat pants. She searched for a handle to open the door with, but only found a keypad on the left side. She let a small smile grace her features. A challenge, she thought. This is what she had been looking for. She knew pigs would sooner fly than she would guess the passcode, so she used her abilities to short circuit the door and its lock, making it slide freely with a small nudge. She smirked, that wasn't too hard.

Entering the room quietly, she fell into a crouching position, waiting to see if Stark realised the door had opened. He didnt even look up from his current project. Ouch, she thought. Am I that invisible? Sniggering at her own joke, she quietly crept between the rows of benches to a table directly behind Stark. She pulled what looked like a super high-tech device out of her back pocket, and placed it silently on the table. Mission accomplished. She turned to get out, when she tripped over a cord that had been haphazardly placed in the middle of the floor, just waiting to trip someone up.

"Son of a gun-" she cried out in surprise. Her eyes widened at her idiotic mistake, and her hands flew to her mouth. But it was too late; Stark had heard her. She ducked behind a bench just as he turned in her direction.

"Who's there?" he called out, seemingly into an empty room. But they both knew this was not the case. Her heart was pumping, and it was so loud she was scared that he would hear her. Something just had to happen, didn't it? She made a move to creep to the door, when she realised that she could see her hands. Now this, this was the one thing that feared: the fact that she wasn't as practiced in becoming invisible as she was with the other areas of her powers, and she had been nervous that she might flicker into visibility if she didn't focus.

Her plan had crumbled into ruins around her, and there was now only one option left: run. She lept up and sped out of the room, knocking over numerous glass objects in her path. Along with the sound of aggravated cries and smashing glass, she heard Stark yell to JARVIS about an intruder. A voice came over the speakers, and lights started flashing red, but she had already reached the elavator. She pushed the button, but nothing happened. She face palmed; of course the lift wouldn't work, there was an intruder in the building. She rushed to the other side of the long hall to reach the stairs, and jumped down the steps. As she ran, she breathed deeply through her nose. This wasn't all bad. She smiled, feeling the adrenaline pumping through her body.

This is what she was made for. It was the threat, the danger, and the blood pounding in her ears that made her thrive. She lived for the chase, for the anticipation, for the adrenaline, for the -

"Stop where you are, or we'll shoot," a strong, female voice interrupted her thoughts. A simultaneous click was heard as dozens of guns became ready to fire, and they were all pointed at her. She had made it to the second floor's landing, and was surrounded by agents of SHIELD. The smile fell from her face, as quickly as it had .

There were many more agents than she first thought there was. She didn't fear them, though. She may have been nervous, but she definitely was not scared. No, the fear had been pushed out of her mind as the feeling of adventure had filled it. Even so, she didn't try to fight her way out of there, though she totally could. They probably had her face on camera, and of she escaped, they would find her, and she definitely did not want to be thrown in jail by SHIELD. She had heard a lot about them on the streets. Instead, she threw her hands up in surrender and spoke confidently.

"I can totally explain." The agent in front of her raised a doubtful eyebrow. The intruder sighed, and threw her arms out to be handcuffed, grumbling profanities.

"Actually, you know what? I'll just go quietly."