The "Avox" girl, a mute servant, represents those who have been completely silenced by the regime. Her story is a tragic subplot that adds depth to the Capitol's brutality. This narrative thread is largely missing from the films. To get the full story of the Avox, you have to read the novel. Finding a The Hunger Games pdf is a good way to ensure you don't miss these important side stories that enrich the world of Panem.