My Sister Keeps my Secret

Hi, my name is Georgie. You're probably guessing why I'm wearing black glasses? Yes, I'm blind, and I can't see any of you. Here, wave at me.

Wait... It can't be! Come again! It’s unbelievable, my eyesight’s back! Ha-ha-ha, got you! I still can't see anything. It’s darkness all around. I got you good, huh? Oh yes, I'm quite a prankster. You may ask, how can a blind person be a master prankster? Hmm, just listen to my story. And in the end, you will find out what doing crazy stuff usually leads to.