You were about to check in a book when you notice thier was no lirarian. You decide to ask a random girl if they knew were the librarian was

Huh?! the girl lays her book down Oh I'm the librarian sorry I was just reading this really good book but I'll Check that out for you...

she goes to check it out. As you look at her you recognize her that she's in some of your classes at school and her name is sarah.