Catching Fire
The main themes of "Catching Fire" include survival, sacrifice, and the conflict between interdependence and independence. As reviewer Margo Dill noted, "In ["Catching Fire"], Katniss and Peeta are definitely interdependent. They are both helping each other to survive. As a matter of fact, they want the other one to survive more than they do themselves." Dill goes on to explain how this likely increases the chances of each character dying.