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What He Could Never Do
The girl worked at night, when no one was awake to discover her. Flashes of green light occasionally flooded the room. The girl's project was unlike anything she had ever even considered doing before, but circumstances had become too dire for her to ignore the problem any longer. Normally, she wouldn't get involved, but that man... He had to be stopped, and the only one who could stop him refused do so. It was time to take matters into her own hands. She kept building...
The fireplace burned in the castle's library, firelight dancing ominously across the silver-haired man's face. Several papers were skewed haphazardly across the desk, some detailing invention schematics, others depicting tactical maps and floor plans, and yet others seemed like normal business documents. A chessboard lay among the smattering of papers; a single white knight and the white queen had been captured, while the white king had been toppled over.
Almost deliriously, the man muttered to himself while he pored over the papers with a maniacal glint in his cold blue-grey eyes, until a hole was blasted through the far wall. The man reacted immediately by changing his form into what resembled a pale blue ghostly vampire with solid red eyes. This did little to help him, as a green blast subsequently knocked him into the opposite wall to the one that had exploded.
That insolent brat, Daniel! Wait... I have ghost sensors that would have detected his ghost form half a mile away from here, even through my portal. Who-
Another blast jumbled the man's thoughts as the wall he was pressed against crumbled as well, causing him to fall into the next room ungracefully. Looking up, he saw an unfamiliar person in a suit that quite resembled a combination of Miss Gray's old suit and her new one. This suit was more heavily armored, appearing silver instead of maroon, and green light glowed in between the armor panels. He could still see that the figure was female, and this notion was confirmed when he heard her speak, though her voice was altered a bit by a metallic-sounding filter.
"I should have done this a long time ago. You've caused enough trouble, Plasmius. Now, I can finally end this. He may not be willing to do it, which is why I'm doing it for him. What he doesn't know won't hurt him, and this will only help him in the long run, when he doesn't have to deal with you."
The vampiric ghost hybrid's eyes widened as he realized who was speaking. I never would have seen this coming, even with all my planning... She was always too... levelheaded for such violence. I suppose it makes sense, though; I must have pushed her too far...
One more flash of green.
As the armored woman turned to make her exit, she noticed the chess board on the table. With a satisfied smirk that was masked by her helmet, she moved a white rook, which she then used to knock over the black king.
"Checkmate." Finally.
In the night, the metallic figure flew her hoverboard into the window of the familiar building, dismissing the board into nothingness as she landed. After looking around for witnesses, she commanded the suit to disappear as well. In the darkness, the girl's features were still indistinguishable.
The shadowed figure exited the room and walked across the hall to another room. Opening the door quietly, she gazed at the smaller figure in the bed.
"Good night, Danny," she whispered. "You're safe now, little brother." With that, Jasmine Fenton closed the door and went back to her room for the night.