Okay .. why she chose an unusual place to do her homework ..

Moving Staircase in the first, then now in the bathroom which is still inhabited by Moaning Myrtle .. beat her own fear of ghosts, Aphrodite slowly entered the bathroom. She found a stack of dirty dust near the sink. She must be fast,

"Vacavus,"

she said, tapping her wand to the vaccum cleaner and after she managed to suck the dirt into it, quickly she was get out of there.