Hahaha! He's responsible for the little army of children! Hehe In a way it's almost like his revenge for having been treated similar when he was younger.

Like how you used the lesser known characters and the backstory you gave Rose was nice as well. It's always a task to figure out their character for a specific story and mold them into more than just a stereotype, but you did an excellent job here considering it's a one-shot. Plus you know, Hufflepuff should get the spotlight every once and awhile.