Penelope was crying in one of the cubicles when she heard someone speak. If it was someone from the history of magic lesson, she would not come back to the lesson. If it was not someone from the lesson seeing if she was alright, or if she would come back to the lesson, could it be someone here to make fun of an ickle firstie crying in the loo? She was angry with herself for yelling at Kyroh, but that anger could easily be brought out on whoever had spoken. "Go away," she said angrily, and then continued crying. "I'm not coming back to the lesson," she sobbed, still thinking that it might be someone from the history of magic lesson.

That wailing... It could only be Moaning Myrtle. Was it Moaning Myrtle who had spoken to her? It wouldn't do to tell Myrtle to go away. This was Myrtle's bathroom, after all. "Oh, it's you," she said, looking up at Myrtle. "Go flood the bathroom, Myrtle." Penelope was still in a bad mood, and didn't care if Myrtle flooded the bathroom. She was in such a foul mood that she would be willing to assist Myrtle in flooding the bathroom. Pointing her wand away from her, she cast aguamenti on the floor, quietly saying the incantation. "Aguamenti." Who needed Myrtle to flood the bathroom? They could have a bathroom flooding party.