The beginning of the story(3)

"What are you doing? Pinkie Pie?","she hears her teacher's voice and sees her friend in front of her,"even your are the best party planner in Equestria, you can't go to this place until you get my permission！"
"I don't think so."Pinkie hides a dagger behind a smile ,"I think you should let Aquamarine go, because she is unhappy with your teaching.And Princess Celestia wants to see her."
"Let's go.Leave this bad guy alone." Pinkie gives her a little reminder.At this time,her teacher is standing in daze…