The book of the week is 'Breathe' by Sarah Crossan.
From the blurb:
"When oxygen levels plunge in a treeless world, a state lottery decides who will live inside the Pod. Everyone else will slowly suffocate.
Years later, society has divided into Premiums and Auxiliaries. Only Premiums can afford enough oxygen to live a nomal life. Dissenters to the regime are ejected from the Pod.
Alina belongs to a rebel group. On the verge of capture, she is rescued by a Premium boy. They escape the Pod but with only two days worth of air. Outside they unearth conspiracy on a breathtaking sclae.
Everything depends on their survival."
Breathe Book Trailer
