[Ellie's P.O.V]
"You guys..." The older brother looked at us in disbelief, then sneered, "You can't fool me. How could you possibly know? Some things are so rare in the world that everyone thinks they only exist in books, and here you are claiming to know."
"Is that so?" I smiled sarcastically, "You may think you have a wide range of experiences, but sometimes being too clever for your own good can be your downfall. I not only know where your invisibility potion comes from, but also how to counter it. Do you still think you're impressive?"
It's all child's play, really. I would have been more impressed if they had something more formidable to show.
"Hmph!" The older brother remained stubborn, sneering, "Talking won't help. I won't believe it unless I see it with my own eyes!"
