Everything you need to understand or teach Nothing by Janne Teller.
A dark and nihilistic take on the coming-of-age novel, Janne Teller's Nothing is a gritty account of what happens to a group of seventh-graders when one of their peers stops going to school and starts trying to convince them that nothing matters. The novel is set in Tæring, a quiet Danish town unprepared for the realization that everything may be trivial. Teller tackles, among other things, themes of life's purpose, violence, and what actually has meaning.