The thunder starts as we’re saying goodbye, leaving each other for the summer holiday ahead.
-- Narrator (Friday, July 17th)

Importance: This quote is the narrative’s first sentence. Through its reference to the approaching storm, it foreshadows that Cass is going to enter a stormy period in her life. It also foreshadows the isolation she will face as she is leaving others, and is departing alone, for the entire summer.

What I should have said was that I was tired, like Mary, our Head, had.
-- Narrator (Friday, July 17th)

Importance: Cass says this after noticing John’s reaction when she says that she is not going to Connie’s house because she wants to be with Matthew. The fact that she thinks she should have said something else shows how people create stories that they think will make others happy.

…what if the killer had already been there, and she had let me drive away because she wanted to...
-- Narrator (Saturday, July 18th)