Iron Gold By Pierce Brown

Iron Gold is the fourth novel in Pierce Brown’s Red Rising saga. A decade after Darrow helped overthrow the Society, the revolution has not brought the peace he imagined. Instead, the Republic is struggling with endless war and a new generation is fighting to determine what comes next.

Darrow risks everything on one last mission, while Lysander au Lune, heir to the old Gold order, travels the solar system with his own vision for the future. Their paths, along with those of Lyria and Ephraim, reveal a fractured society struggling to build a new world from the ruins of the old one.