"Well, we need more substantial evidence," Dumbledore said, placing the letter on his desk with a meaningful expression.
Miss Quinlan took a sip of the black tea the Headmaster had offered her, her tone deep and measured. "Right, so have the professors found out who stole the ingredients for the Polyjuice Potion?"
Moaning Myrtle says the residual potion in the drains has increased lately, and it's too scattered to tell who's responsible," Dumbledore replied, his face betraying no emotion.
Chapter 63