Overall I enjoyed this one. It had some solid characters, a good story, and quite a bit of action.

Bea, Quinn and Alina are the main characters in the story. I thought Crossan did a great job of weaving their stories together to get the reader to where the story needed to go. Bea is smart and tough but considered lower class, Quinn is a privileged upper class citizen and somehow they have become close friends. Bea clearly wishes for more and Quinn seems a bit clueless initially but thankfully he catches on. Alina, I'm afraid to say, is a bit of a B but she has her reasons and ultimately, it fits into the story.

With all of the dystopian books coming out these days, this book has a bit of a twist that others don't have in that there is a need for oxygen tanks and based on class, availability is impacted.

I am looking forward to the next book in the series as this one was well done and left me interested in learning more about the characters and what will happen next.