Monsters in disguise, like Medusa and the Furies, know very well how to embody normalcy in order to accomplish their goals. Medusa may be as normal as any other monster in the divine world, but in the mortal world, it’s necessary for her to assume the identity of Aunty Em. Mrs. Dodds did the same thing by assuming the math teacher persona. The way that the monsters do this throughout the novel makes it clear that what’s normal changes from situation to situation—and it’s possible for individuals to pass as normal in a variety of settings.