Violet knew what she had to do. She had to use her power to go invisible and decide how to proceed, either escape and get help from other supers, or track the Minimiser at this size, knowing that at least she wasn't trapped in that knapsack with all her classmates.

Taking advantage of the chaos, she looked for a safe place to start undressing in order to activate her power and become completely invisible. Even with the looming danger incoming Violet was a teenager, and couldn't help but feel a wave of humiliation and embarrassment at having to get naked in the classroom of all places, but she had no choice. She could have gone invisible first and then take off her clothes, but she still remembered those words from her mother. 

"Your identity is your most valuable possession. Protect it."

She knew if anyone saw her getting naked she could make an excuse about the shock of being shrunk by this Minimiser supervillain, whereas if she got exposed as a super things could get complicated. In the best case scenario somebody would get their memory deleted and in the worst one.. she wasn't really sure. She ran towards the wall and quickly took off her clothes, throwing them carelessly until she was fully undressed and activated her invisibility power.

"Come here, boy" The Minimiser grinned at a hapless boy that was using the desks to escape the grasp of the giantess villain but it was clear she was only toying with him. She had to crouch and extend her arm while he ran for his life, and after hearing the sound of the Minimiser straining and a giant fist hitting the floor in frustration behind him, he felt relieved and could finally slow down and catch his breath. 

But it was hopeless. "Congratulations, come get your prize in the bag" The Minimiser laughed as all she had to do was move her body a bit to cover the remaining distance and quickly grab the poor boy that couldn't even react on time to start running again. "Who else wants to play?" The Minimiser laughed, getting on her knees and resuming her mission to kidnap the remaining tiny students. 

Violet now had to think on the next step. While invisible it was easy to evade the giantess, but she was powerless and could only watch how she kept playing with her prey while on her knees. Making a wall with her arms to trap a group of classmates that were trying to escape together, flicking a boy softly to make him stop running before picking him up by his leg, using her fingernails to lift a boy by his shirt and finally, after spotting a tiny girl running on the other side of the room she just stood up, took a few steps, and made the girl crash against her blue boot before picking her up and storing her in that knapsack.

"I think that's everyone!" The villain said to herself taking a last look, and now it was Violet's time to act

What happens next?