Myrtle's Friends

After a troll destroys her washroom, Myrtle Warren and the other ghosts meet on All Saint's Day. They decide to do something about the decay in Hogwarts standards by calling for other ghosts to appear and stay for a year. What kind of changes can the ghosts bring about? Will Myrtle make friends? No ships. Mild Bash Dumbledore, McGonagall, Snape, and Lucius Malfoy BASH! (ONE SHOT)