"Well, I have reason to believe that you're not human." And then, because this is Astrid and not some other child, and therefore would like to know the reasons why, she continues, "My hair color doesn't change based on what I eat, when I get hurt I bleed red, I need to eat more than you do to be healthy, and I - have a heartbeat. You do not seem to."

Pause. "I have no idea what you are, but I love you all the same. Okay?"