Chronicals of Narnia 3 characters?

they are in flashbacks and lucy cast a spell to become Susan because she doesn't think shes as Pretty as Susan and she cast the spell walks through a mirier and she becomes Susan peter is in this scene for about 30 seconds Lucy's happy being Susan until she discovers threes no narnia cause lucy never existed asland reminds her that she is Pretty and if it wasn't for she would of never found Narnia and she decides she needs to be her self