Minh is part of the generation that first moved back up to the surface of the Earth from the underground hells, to reclaim humanity's ancestral habitat. She's spent her entire life restoring river ecosystems, but lately the kind of long-term restoration projects Minh works on have been stalled due to the invention of time travel. When she gets the opportunity take a team to 2000 BC to survey the Tigris and Euphrates rivers, she jumps at the chance to uncover the secrets of the shadowy think tank that controls time travel technology.

    "That they will be what they like. That they will own the land their father gave them.""I live for you," I say sadly.Eo kisses my cheek. "Then you must live for more."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 already reached the surface generations ago. Vast cities and sprawling parks spread across the planet. Darrow—and Reds like him—are nothing more than slaves to a decadent ruling class.Inspired by a longing for justice, and driven by the memory of lost love, Darrow sacrifices everything to infiltrate the legendary Institute, a proving ground for the dominant Gold caste, where the next generation of humanity's overlords struggle for power. He will be forced to compete for his life and the very future of civilization against the best and most brutal of Society's ruling class. There, he will stop at nothing to bring down his enemies... even if it means he has to become one of them to do so.

    My name is Bryn Mathis. I'm seventeen years old, and I live in a neighborhood outside of Orlando, Florida. I’m here alone because my dad died almost a year ago, along with all the other adults in the world. I'm almost out of food, and the gangs of kids that roam around my town are getting more vicious by the day. It's time for me to leave and find another place to live ... a place where I can find food and shelter ... a place where they won't be able to find me. Alone, it might have been possible, but now I've got company. I'm worried that I don't have what it takes to get from here to my final destination, and I have no idea what might be waiting for me when I get there.