This ebook was a quick and completely enjoyable read. The heroine, Juliette, is such a great character. I love that she is in maintenance and all her metaphors are mechanical and schematic related. It gives a concreteness to the very concrete world of the silo. She says at one point "We are born, we are shadows, we cast shadows of our own, and then we are gone. All anyone can hope for is to be remembered two shadows deep". Things are not much different in our own world except ours is so much more expansive. That being said the world of the silo is pressing down on its inhabitants but the book does not feel claustrophobic at all. I don't want to give any of its secrets away but I would read more about these people and Juliette in particular.