She reacted better than he could have hoped. 

Of course, he didn't get to see her transformation. Instead he ducked inside one of the girls stalls, closing the doors as he felt his strength fade away, his powers draining. He knew Ms. O'Neil was changing form, though he didn't know what she looked like herself, and he could barely hear his miraculous begin to beep over her near-demonic cackling. He saved himself the trouble of waiting and detransformed, hiding in the stall.

Outside the door to the girls bathroom, the boys barely had time to exchange words. For as soon as Aaron twisted Eddie around to face him, the door to the girls bathroom flew off it's hinges, knocking them both flat. A purple mist spilled out onto the floor, lights flickering and the air becoming alive with energy. From out of the doorway a tall, dark shadow loomed, her dark cackles reverberating throughout the hallway. A black heel clicked sharply against the ground, a tall young woman in a black and purple leotard and cape stepping out into the hall. All around her in rotating circles, books, pens, papers, and other objects flew, like a psychic gyroscope. Her eyes glowed a dark red from behind her mask, her hair standing up in points resembling a devil's horns.

The crash of the door had drawn out quite a few people into the hall, staring at the woman with hushed astonishment. The ruckus from the library, of course, continued nevertheless. With a grimace, the Almaniac floated into the library, her eyes a deep red with rage. The boys only noticed her too late, as the doors to the library slammed shut behind her, desks and tables barricading the door.
[color=a187be]"No. Talking. In the library."[/color] she hissed out. With a flick of her hand, the books on the surrounding shelves came to life, pages flaying out and wrapping the unruly students like mummies, muffling their screams and shouts. With another flick, the cocooned boys were floated over into a pile behind her desk, pens and markers picking themselves up and beginning to scribble on them out of vengeance. The Almaniac cackled gleefully, floating down the shelves of books and mummifying every student she came across.
[color=bc8dbf]"No eating! No drinking! No skating, gum chewing, make up applying! No video games, headphones, crouching or slouching! Bad, bad, bad!"[/color] she giggled, bookshelves rattling and rocking as she passed. 

[hr]

From within the bathroom, Clair grinned, seeing the world through his akuma's eyes. Yes, everything was going perfectly. He'd let her have her fun, destress herself for a little while. Then, when she was satisfied, he'd take control of her, and use her to find the other six miraculous stones. He blinked, the red vanishing from his irises. For now, he had to get to a safer location than the girl's bathroom. And so, not noticing the two boys pinned under the door, he slunk out of the bathroom, disappearing into the worried crowd that had formed in front of the locked library. In the commotion that followed, no one would be able to remember exactly where he was. Just as he preferred.