Darrow is a Red, a member of the lowest caste in the color-coded society of the future. Like his fellow Reds, he works all day, believing that he and his people are making the surface of Mars livable for future generations. Yet he spends his life willingly, knowing that his blood and sweat will one day result in a better world for his children. But Darrow and his kind have been betrayed. Soon he discovers that humanity reached the surface generations...

Darrow would have lived in peace, but his enemies brought him war. The Gold overlords demanded his obedience, hanged his wife, and enslaved his people. But Darrow is determined to fight back. Risking everything to transform himself and breach Gold society, Darrow has battled to survive the cutthroat rivalries that breed Society's mightiest warriors, climbed the ranks, and waited patiently to unleash the revolution that will tear the hierarchy apart...

For a decade Darrow led a revolution against the corrupt color-coded Society. Now, outlawed by the very Republic he founded, he wages a rogue war on Mercury in hopes that he can still salvage the dream of Eo. But as he leaves death and destruction in his wake, is he still the hero who broke the chains? Or will another legend rise to take his place? Lysander au Lune, the heir in exile, has returned to the Core. Determined to bring peace back to mankind...