Christopher Harper, sixteen, from the boys’ school one road and two extra-high walls away. Sometime during the night, someone had bashed his head in.
-- Narrator (Chapter 1)

Importance: When Holly brings Moran the card indicating that the person who left it on a message board at St. Kilda’s knows who killed Chris, Moran remembers the case. Chris had been killed a year previously. His killer was never found.

You’re talking like these are girl gangs from East LA. Razor blades in their hair.
-- Moran (Chapter 3)

Importance: Moran notes how the girls who attend St. Kilda’s appear to be demure and polished on the outside, but are actually vicious and ruthless. Conway first points out this reality to Moran when she describes the girls as being snobby and uncooperative. Moran does not realize how correct her assessment is until he starts working with the girls one-on-one.

Conway had been right: lies on that board, as...
-- Narrator (Chapter 7)