"...chicken!"
Sally pointed her wand at Ms. Berger and said "Abracaricken, be a chicken!"
Ms. Berger suddenly began to shrink as her body began to sprout feathers. Before the astonished eyes of the class, their teacher metamorphosed into a small white chicken, which soon stepped out of Ms. Berger's clothes.
"Ms. Berger!" cried Monica. "Sally, what did you do to her?"
"I turned her into a chicken, silly." Sally said, with a wicked grin. "And she'll stay that way as long as I want her to."
The class was not sure how to react. Some were horrified, but a few were laughing as their former teacher strutted around her former clothes, clucking.
"Change her back!" pleaded Monica. "You shouldn't do that to a teacher."
Sally scowled at Monica. "I can do anything I want to her now. In fact, I can anything I want to you now! Hmm, what should I do?"
Wicked thoughts began running through Sally's head. What should she do to Ms. Berger the chicken? And what should she change Monica into? Suddenly, she got an idea...