Katie manages a giggle at Circe, though likely more for giggling's sake than understanding the pun. Her forehead scrunches up as she tries to come up with an explanation for Sasha.
"Well, at first I felt really good. Like I could run around the whooole neighborhood and not even get tired. But then... then everything was bothering me. I wanted to turn the TV off, but I had to turn it on and off three times. And when I went to bed, same thing with the light switch. It made me feel crazy not to." She shakes her head. "It went away in the morning. But this," she points to the side of her head, behind her ear, where the gill slits can be seen. "Didn't."
The girl watches Circe's demonstration curiously. Especially watching the blue elf transform into a normal human. Which illicits a barely contained "Whoa..." Without bothering to ask what 'Glamour' is, Katie mimics the action. With a squint and a sucking in of her lips, the girl's visage transforms into that of a normal girl.
"Like that?" She smiles impishly, looking down at her hands and giggling at the disappearance of webbing.
"Billy's the one who's got powers. He can make fire and stuff. Plus he made our hideout pretty much by himself. He was just smiling and staring at things and they would change." There's a hint of jealousy in her voice now. Probably because she's been 'shown up' by a little kid.