Forgotten Earth Books in Order
Part ofMR Forbes Books in OrderSee the Forgotten Earth books in order by MR Forbes, with short summaries, reading order, series background, and easy starting-point advice.
Last updated: July 2, 2026
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Forgotten Earth books in publication order
4 books
Earth Undefeated
by MR Forbes
2018
Captured and battered, Sheriff Duke faces a final countdown with his family on the line. To save them, he may have to trust the fugitive he once chased and rewrite everything he thought he knew.
Earth Unending
by MR Forbes
2018
Sheriff Duke races across a deadly wasteland toward an enemy with apocalyptic plans. Cannibals, killers, and monsters are dangerous enough, but the real threat is far bigger than any of them.
Earth Unknown
by MR Forbes
2018
Framed for his wife's murder on Proxima, Nathan Stacker flees to Earth to find answers and revenge. He soon learns the forgotten planet is the least safe place he could have chosen.
Earth Unrelenting
by MR Forbes
2018
Sheriff Duke is now the hunted one, chased across a world that keeps getting worse. The secret behind the forgotten Earth could change the universe, if he lives long enough to expose it.
Forgotten Earth books in chronological order
Series background & context
Forgotten Earth opens from a different angle than The Forgotten. Instead of starting on a generation ship, it begins on Proxima, humankind's closest major settlement to Earth. Nathan Stacker, a former Space Force captain turned criminal courier, is trying to survive there with his wife and whatever scraps of dignity he has left. Then he comes home to find her murdered and gets framed for the crime.
That sends him running to Earth.
Nathan believes Earth is the only place he might disappear long enough to uncover the truth. He is wrong about the disappearing part, but right about the secret. The planet he reaches is not just dangerous. It is layered with old lies, hidden agendas, and the kind of history that can reshape whole civilizations when it surfaces. As the series continues, Sheriff Hayden Duke becomes central to the action, and what began as Nathan's personal flight turns into a much larger struggle over Earth itself.
The books have a strong chase-and-discovery rhythm. There is always movement, always pressure, always one more threat appearing before the last one has been dealt with. Wastelands, ruined cities, hidden enemies, family danger, and escalating stakes all stack together. Forbes writes it like a road trip through a broken world where every stop makes things worse and more revealing at the same time.
What makes Forgotten Earth stand out inside the larger universe is the mix of personal motive and giant consequence. Nathan starts because he wants answers about his wife. Hayden keeps going because people he loves are now inside the blast radius. The larger mystery matters, but the books stay readable because the characters have immediate reasons to keep fighting.
If you like sci-fi that feels part fugitive thriller, part post-apocalyptic mystery, and part universe-expanding revelation, this branch does that well. It also deepens Hayden Duke's story in a meaningful way, so readers who like the sheriff books often end up here sooner or later. The planet in the title is not just forgotten by history. It is the place where history comes back with teeth.
Edited by
Software engineer whose passion for tracking book recommendations from podcasts inspired the creation of MRB.
Lead investor at 3one4 Capital whose startup expertise and love for books helped shaped MRB and its growth.






















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