What if Horrificator attacked sooner, when Marinette and Alya were in the bathroom?
Horrid Horrificator
Chapter 1: Stalled
"Why are you so intimidated and scared all the time?" Mylène asked herself, staring into the mirror in the girl's bathroom.
She had tried to act the part of the bold Agent Smith in a school movie project, but she kept jumping and screaming whenever Ivan appeared in his purple, three-eyed monster costume.
She ran away when Chloé mocked her as a "pathetic scaredy-cat." Ivan had followed and tried to cheer her up by giving her a pin from his favorite band, the Zombie Skull Crushers, but it didn't restore her confidence. She couldn't act to save her life.
Staring at herself in the mirror, Mylène was too upset to notice the purple-black butterfly entering the pin.
"Horrificator, I am Hawk Moth. Up until now, you have felt fear. From now on, you will cause fear. And after you show them how they make you feel, you will do something for me in return."
"Yes, Hawk Moth," said Mylène.
Dark magic bubbled around her, and she became a small version of the purple monster from the movie.
"Blaagh!"
Horrificator spit sticky purple and pink goo all over the mirror.
The bathroom door started to open.
"Mylène? Mylène?" said Marinette.
The remnant of Mylène's timid personality asserted itself. She couldn't let anyone see her like this! Horrificator hid in a stall.
Through the crack in the door, Horrificator saw Marinette standing at the mirror. Marinette put a finger on the sticky substance.
Alya came in. "Did you find her?"
Marinette said, "No."
Before Alya could respond, Horrificator got a mental communication from Hawk Moth.
"Horrificator, you don't have to hide! Attack them, and you will grow from their fear!"
"Blargh?" said Horrificator.
"I hear someone in that stall," said Alya. "Did you check there for Mylène?"
"I was distracted by the goop on the mirror," said Marinette.
"Eeew, vandalism! We'll report it to the principal later. Hurry up and get Mylène and then let's get back. Some smooching is about to go down!"
The stall door opened and the two gasped in shock at what they saw: a three-eyed purple monster.
Hawk Moth sent, "Scare them, Horrificator, and you will thrive!"
Energized by the fear she sensed, Horrificator stood tall and growled.
Marinette and Alya screamed.
Grabbing one with each arm, Horrificator pulled them into the stall and shoved them to the floor on either side of the toilet. She vomited goo all over them, sticking them to the back wall.
They were covered with the purple muck from the neck down. When they opened their mouths to shout for help, Horrificator spat more of the goo into her hands. She stuffed it into their mouths, sealing them.
Her instincts told her that her victims should be completely sealed up. Horrificator jumped to the top of the stall and sealed off the top. She sealed the side edges of the stall with more goo, then closed and covered the door.
They were scared, and it felt good. It wasn't quite as much fear as she had hoped for – both were braver than she anticipated. Horrificator only grew a little bit. She went out into the school courtyard to seek more victims. It would be good to find a place to seal up more of them together – the stalls didn't provide enough room. The school cellar would be much better for the rest...