"Breathe" by Sarah Crossan is a captivating children's book set in a dystopian future where survival depends on social class. After the "Switch," life in the Pod has changed: the poorer Auxiliary class cannot afford the oxygen tax, while the wealthy Premiums live in health and strength. Sixteen-year-old Alina is part of a secret resistance movement fighting against the oppressive regime. When a mission goes wrong, she must flee the Pod with only two days' worth of oxygen in her tank. Her only hope is to find the mythical Grove, a protected place full of trees guarded by rebels. This thrilling story explores themes of courage, freedom, and the search for love in a hostile world.