The Pillars of Reality Books in Order

The Pillars of Reality is John G. Hemry's big science fantasy series, and it is a good fit for readers who want the structural thinking of his military science fiction carried into a world of guilds, prophecies, dragons, and old lies. The setting is Dematr, a world kept deliberately stagnant for centuries by two rival powers, the Mechanics and the Mages. Ordinary people live with oil lamps, cavalry, and crossbows while the guilds hoard knowledge and insist that the other side is built on fraud.

Then Mari and Alain meet.

Mari is a brilliant young Mechanic. Alain is a young Mage who has been taught to suppress much of what makes him human. Each has been trained to distrust the other's entire worldview. When events force them together, the series starts doing what it does best: peeling back the systems that shaped them and showing how much of their world rests on manipulation, secrecy, and carefully managed fear.

Across the books, Mari and Alain move through cities, dead zones, imperial territories, and coastal strongholds while trying to stay alive long enough to learn what Dematr really is and what kind of disaster is coming for it. There is an ancient prophecy in the mix, but the books never become only prophecy-driven. Their real strength is the partnership at the center, two capable people discovering that they can solve problems together that neither side of their world would ever have allowed.

The tone is adventurous, but not fluffy. There are road-story elements, chase sequences, politics, romance, hidden history, and the slow construction of a rebellion. Hemry's usual interests are all here, just dressed differently: controlled information, rigid institutions, practical leadership, and the cost of change.

Dematr also feels distinct. Steam devices and far-talkers sit next to magic, monsters, and ancient ruins. The blend is less whimsical than it sounds. It has the solid, workmanlike feel of a world where somebody has to make the trains run, hold the walls, and explain why the official story keeps falling apart.

If you want the full arc, start with The Dragons of Dorcastle and go in order.

This series is especially satisfying for readers who like fantasy with strong momentum, a central duo who grow together, and worldbuilding that treats power, knowledge, and technology as things people fight over because they matter.