Fairies are the guards at the School for Good, just like the Wolves at the School for Evil.
Small, human-like beings with wings. Of Elven descent.
At School Edit
The Fairies patrolled the School for Good and made sure Evers did not misbehave. When an Evil student failed, the punishment was to be transformed into a Fairy to serve the School for Good. This was revealed when Bane made the wish that all of the students would know the truth, which Agatha granted. During the Circus of Talents, Sophie ordered ravens to kill all of the Fairies and Wolves. Bane managed to escape from the ravens, and saved Agatha from plummeting to her death when Sophie pushed her down from a tall ledge during her transformation into a bald, wrinkled witch. Bane set Agatha down and died in her hands: the energy he expended as a fairy to save her was life-draining and fatal.