"Prefects only." Myrtle agreed in her whiny little voice. She thought for a moment, "And then all of the prefects can tell everyone all about how I'm smart and pretty and the best ghost in the castle."

Then she'd have a posse. Of prefects. Against peeves.

Because Myrtle was so innocent and nice and deserved to have a party.

"Then we can have a bigger party and you can bring boys that might be nice to me."

Or she'd flood the school.