The Marauders found a Muggle fairy tale in Sylvia's book.
James excitedly said that he would be Lily's knight.
"I am also a knight!" Sylvia said loudly, "I have decided since I was a child that I want to be a knight!"
"But you don't have a princess!" James retorted, "In Muggle stories, knights have to protect princesses!"
Sylvia looked around and pulled Sirius aside who was watching the excitement.
"This is my princess!"
Purpose: About friendship and growth