A/N: I'm so sorry it took so long to upload this! My USB, which contained all of my writing and my homework, broke. Unfortunately, I was done with the chapter but I didn't save it onto my desktop as well. I should have saved it there, but I didn't. But anyway, here's chapter 4 (finally!) and I hope you enjoy it.

Disclaimers: Portal and Portal 2 (c) Valve.
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The girl yawned, stretching a little as she opened her eyes. She looked up at the cieling, the light that hung there blinding. Her eyes widened when she saw a cover from above her retract so she could sit up, doing so carefully. She looked around the small box room, firstly looking at what she had been sleeping in. She got up and turned around to face the object, running her hand along the edge, noticing the oxygen tanks at the head of the (what'd she'd determined as a) bed. She turned around, leaning against the bed, looking at the other things that inhabited the room, all inanimate objects. At the foot of the bed-pod type thing and to the left was the toilet. In the corner a little from the toilet was a sort of stand, white to match the scheme of the rest of the room. She walked up, the closer she got, the louder a light tune could be heard from the small radio. The tune was definitely catchy, that was for certain. She tried to change the station, but to no avail. She had turned every dial, the only one that changed anything was the volume, simply making the elevator-like music louder or more quiet. She lightly sighed and gave up on the contraption, moving to the other things on the small table. A clipboard with some type of chart sat on the table, an empy cup on the remaining space on the flat white of the stand. She looked over the charts, trying to understand what they were for, what they meant, but she sighed again, frustrated that she didn't understand what was supposed to be on the yellow sheet of paper that was clipped there to the wood.

The automated voice above brought her out of her investigation, gaining her full attention as she looked up, as if to see the person who was speaking, though she obviously wasn't going to see anyone since it had more than likely been pre-recorded at an earlier time by an employee that worked in the place. "Hello, and again, welcome to the Aperture Science computer-aided enrichment center. We hope your brief detention in the relaxation vault has been a pleasant one." The voice continued, "Your specimen has been processed and we are now ready to begin the test proper." The voice continued, "Before we start, however, keep in mind that although fun and learning are the primary goals of all enrichment center activities, serious injuries may occur." The girl raised an eyebrow at the voice, hearing that she might get hurt. "For your own safety and the safety of others, please refrain from touchi-" the voice cut off, being replaced with static. The girl watched the clock above the door outside of the glass room malfunction, surfing through the numbers randomly and the lights flashing a bit. The voice began talking in a few different languages, then back to English when the lights and the time on the door returned to normal as the voice continued to talk, "Stand back. Door will open in three, two, one." She jumped back, slightly startled when an orange portal opened in front of her. She stopped when she hit the ground, feeling a slight bounce when she landed. The girl looked down at her feet, seeing some strange wire like things that were hooked around where her knees bent, connected to her legs at the back of each knee. They were obviously used for a softer landing with just her bare feet, if not being able to jump higher with them.

Casting aside the light fascination with her new 'shoes', the advanced knee replacements. She looked to the side, to where the blue portal had opened up, seeing herself through the portal. She looked herself over, her hair a mess and her Davy's grey eyes as bright as ever. She had an orange jumpsuit on, though its color was dirtied and a tad bit faded. There was a left breast pocket and a type name tag on the right breast that said "Aperture" on it. The jumpsuit was a zip-up, the zipper going down the middle front of the outfit, some of it unzipped to reveal a white tank top that was under the orange clothing. Not that any of it really mattered to her, she didn't care either way. She pulled out her ponytail and ran her fingers through her hair to fix the hair that was falling out, quickly succeeding in the small task and continuing forward through the portals. She stopped as she walked through for a second, the sound from an object moving through portals catching in her ears for a second, but shrugging it off quickly as she continued on. The floor was a lot smoother than she'd thought it would be, the material seemingly like a mix between linoleum and some sort of soft padding. The girl continued down the strange hallway type room that went around the relaxation chamber she'd been in. There was a medium-sized oval shaped item hanging from the wall, a red eye from the middle, following her as she went along, hanging beside a large glass window that contained some sort of office from what she could tell was in the room. She continued to a door, another red eye hanging from above the door.

The black-haired girl walked into the room, the door automatically closing behind her. She stepped on the button, the door in front of her opening up to what looked like a hallway and to an elevator. The end of a clear tube in the corner of the small room opened, dropping a large cube. When the cube hit the ground, it sounded like it was hollow, which proved that it should be light to pick up, despite its size. She walked over to the square, the button going back up and the door closing once she'd gotten off of it. She picked up the cube, carrying it over to the red button and placing it where she had just been. The cube felt a lot lighter than she'd thought it would, but she didn't argue and continued on through the open door. The voice came on again, "Excellent. Please proceed into the chamberlock after completing each test." She did, continuing down the small corridor, stopping for a second when the voice continued, "First, however, note the incandescent particle field across the exit." The girl sighed when the voice continued going on about the item. "This Aperture Science Material Emancipation Grid will vaporize any unauthorized equipment that passes through it - for isntance, the Aperture Science Weighted Storage Cube."

The girl continued to the elevator, presuming that the voice was done informing her on what was painfully obvious to her. The elevator doors closed behind her as she jerked slightly as it started its ascension to the next test chamber. This was going to be a long day.