Grabbing her wand from her desk and closing her eyes, Marie pictures pretty green butterflies in her head. Raising her wand and giving it a little shake, like she was trying to shake something from the end of it, she clearly says "Papilio." Opening her eyes she is excited when she sees one green butterfly.

Raising her hand she says "Professor, is it normal for only one butterfly to appear? I was picturing several in my head when I said the incantation."