Authors:

A crease found it's way onto Joss's forehead. Because he was certain that Sirus was wrong. Girls were more complicated than boys. Girls communicated in a language that only they understood. And Joss wasn't sure at all that he would ever understand them.

Heather Brewer (2011). “First Kill”, p.61, Penguin
A crease found it's way onto Joss's forehead. Because he was certain that Sirus was wrong. Girls were more complicated than boys. Girls communicated in a language that only they understood. And Joss wasn't sure at all