Great Maggeena

Great Maggeena is Maggie's alter-ego.

Description
Bartman's pint-sized ally Maggeena (mild-mannered Maggie Simpson) was initiated into the Bart Alleigance on the condition that she never speak to outsiders of her secret life. Since she cannot speak, that worked out fine. Because Maggeena is too little to help Bartman fight foes, her main duties at present consist of sitting on the floor of the Bartcave twiddling her thumbs, and sneaking cupcakes for Houseboy from the Simpson kitchen.

History
Lisa unmasked Bartman after he sprained his foot and promised not to reveal the secret after Bart gave her six months of his allowance. Because Bart had sprained his foot he could not continue on his mission as Bartman, to save Milhouse, who had been taken hostage. Lisa started to help Bart as Lisa the Conjuror and took help from Maggie as the Great Maggeena.