It was five years after the near-deadly events of Aperture Laboratories. Circumstances were different nowadays; human testing was back, nothing was in danger of exploding, there were even human employees. But there was one thing in particular that never changed, and probably never would.

The ruthless piece of machinery that was in charge.

GLaDOS had not altered her personality in the slightest. She was the same human-dispising supercomputer she'd been from the moment she'd first powered up. She was also still just as dangerous. She was the only thing in her chamber. She would flip through her camera views, occasionally issuing a death threat to anyone she didn't feel was working too hard, made a mistake, or just if they passed by at the wrong time. Every day it was the same. She wanted desperately for something exciting to happen. I guess I could work on that experiment I've been wanting to try. She thought. She had nothing better to do, so she made an announcement to the facility.

"Would someone bring a test subject, two bodies from a morgue, and the old testing robots to my chamber." Of course, despite her relaxed tone, this was not a request. It was an order. Soon, a male test subject was escorted in, along with two bodies being wheeled in on stretchers, and P-Body and ATLAS. GLaDOS told the scientists to leave as she studied the corpses. One was in tact. The other, to say the least, was not. "Test Subject 3482. Name: Erik Wainwright." The man stared up at her, frightened past the point of reason. "How often do you test?"

"E- every day, Ma'am. Every day, all day." When he saw something emerge from the chamber floor, he was sure that it was a rocket sentry, but it instead was a pedestal with a card on a lanyard on top of it.

"Mr. Wainwright, you're free to go." Erik simply looked at her. "This card will allow you safe passage to the surface. You've tested enough." Erik, in disbelief, approached the pedestal smiling. The smile was quickly lost, for the moment his finger touched the card, a metal dome came out of the platform, trapping his hand inside.

"Congratulations. You've just failed your last test. You didn't honestly expect me to let you go just like that, did you?" She watched in amusement as he desperately tried to pull his arm away. "Goodbye, human." She then sent a burst of electricity though his body, and he uttered one last noise of distress. Originally, she'd planned on killing him just for fun, but she needed two bodies with no physical damage. Unfortunately, that meant no neurotoxin.

She should have felt bad, she really should have. After all, she herself was human once, as hard as it was for her to believe. She'd told her that Caroline had been deleted, but she had, in fact tried to keep her. So when the mute lunatic was on her way out, GLaDOS (or Caroline, rather) had decided that she wanted to keep her there, as not to be torn away from her child. That was probably the only time the Wheat Field Simulation Room ever had a purpose. After that ordeal, GLaDOS really did delete Caroline's personality, but not her memories.

So, this led to the experiment. If a human could be turned into a robot, could she turn a robot into a human? She threw the damaged body into the incinerator and put the new one in its place.

"You two." P-Body and ATLAS looked up at her. "Your test results aren't recorded, you can't perform the basic tasks needed to work here as full-time employees, and you find pleasure in annoying me. I shouldn't have built you in the first place. But now that I think about it, there is something you over sized flash drives can do for me." She summoned two stasis pods. "Put the humans in there. Oh, don't give me that look. They're dead. Get over it. Okay, good. Now," Here came the fun part. Two wires fell down in front of the AI's. "Plug yourselves in." This part took longer than she'd anticipated, as the idiots couldn't even figure out how to do it. Bored, she eventually had to open the panels on their backs and insert the cord herself. "I can't believe that I built such worthless pieces of scrap metal. Now, you're probably wondering, if either of you have the mental capacity to, if this is going to kill you for real this time, or if it's safe, or if it's going to hurt. In order: possibly, not necessarily, and absolutely. I added pain reciprocals to your mainframes last time you were deactivated. Surprise." As if to test this, ATLAS slapped P-Body, who reacted exactly as GLaDOS had hoped. If she had a mouth, she would have snickered from the sight of the pain. "Are you ready?" Both robots rapidly shook their heads no. It figured. "Well, then, we'll just sit and wait here until you are. It's not like any of us are going to drop dead." She gave a small laugh. "Well, I won't."

She began the procedure, a blinding flash of light exploding from the stasis pods and robots, who let out ear-splitting screams. Was it working? Either way, the sound of anguish thrilled every one of her circuits. She laughed hysterically for about ten seconds before it caught in her voice emitter. Why did she stop? Because there were no more suffering noises coming from P-Body and ATLAS. Instead, she felt surges of electricity firing inside her body. She looked and saw small bolts sparking from her.

"[GLaDOS System Error. A Serious Error Has Occurred. Searching For New Power Source.]"

What? One by one, she lost control of her cameras. She still had access to the intercom, so she issued a distress signal and called for help. "Get an engineer in here NOW!" By the time she managed to finish her plea, she couldn't see any of the entire left wing.

Five scientists rushed into the chamber. "What's going on?"

"How should I know? Just do your job and fix it!" Though her voice was demanding, it was only really covering up just how immensely terrified she was. What had gone wrong? If there was a limit to what she could do, shouldn't she have known about it? It didn't matter now. She was going to die. The pain increased steadily, and she began jerking in agony from the ceiling from which she was suspended. The scientists tried to approach her, but the electric energy was too high. They ran around frantically trying to do something as GLaDOS shrieked.

"Fix it, you idiots! Fix it!"