**Review based off of a digital ARC received from www.netgalley.com

Darrow and his fellow Reds toil in the brutal mines of Mars, enslaved by the cruel Golds who promise their labor will someday make the surface habitable. Hope for a better future keeps the Reds working, but an incredible tragedy reveals Darrow’s entire world is a lie. To expose the Golds’ treachery, Darrow is thrust into an epic role of espionage. Can he trick the Golds and save his people?

I am super impressed by this work. I thought it would just be another dysopian tale (just set on Mars) but it has such deeper roots, including nationalism, rise against castes, and more. Darrow is a dark hero and I'm interested to see how his journey will go over the course of this series. I worry he will forget his roots, but I can't wait for more!