"You must not even have magic, wings aside," remarks Amariah. "Okay. Path and Petaal are called daemons. On our world, everyone has them. They're like our souls, but we keep them outside of our bodies. Children's daemons can turn into anything they like. Most settle down around puberty - Path can only be this kind of owl, now - but Petaal never did. She can be whatever she wants. Including a he. So she'll change shape sometimes, and sometimes does this in such a way as to suddenly be something that would normally wear clothes but not have any. Make sense?"