This book was recommended to me by a former professional ice-hockey player called Elvis. A good call – it's set in a future where what's left of humanity is trapped in cramped underground silos, protected from the poisoned and corrosive atmosphere, and the worst punishment imaginable is to be sent outside for a "cleaning", to slowly die in the tainted air. Of course, the existing power structure is founded on lies and oppression, and one young woman finds herself with a mission to overturn the existing order. I really enjoyed it – apparently a case of self-publishing going right – and am rather surprised I hadn't picked up much buzz about it from my usual fandom sources.