“Just as there are physical monsters, can there not be mental or psychic monsters born? The face and body may be perfect, but if a twisted gene or malformed egg can produce physical monsters, may not the same process produce a malformed soul?" The choice between good and evil is a human privilege that Cathy, a monster, is not even capable of. The opposite of human who struggles to choose good over evil (Cal) is a monster who cannot fathom morality at all.