Year 10 is pretty crazy for best friends Lydia, Cassie and Emily, and when their English teacher starts the Pen Pal Project so that they can experience the Joy of the Envelope with boys from scary Brookfield High, life gets even crazier.
As Lydia turns into a secret agent and Emily a relationship expert, it is not clear what is happening to Cassie. She is writing to someone, but not even her friends know what’s going on. Does she even have a pen pal? Or has Cassie really lost it?