Dust is the third and final volume of the Silo series by American author, Hugh Howey. Three narrative strands describe events in each of Silos 18, 17 and 1, starting just after Juliette Nichols is elected Mayor of Silo 18. Juliettes priorities, far from her Mayoral duties, include tunnelling to Silo 17 and going Outside again for some investigative work, both of which provoke nervousness and fear in the Silo, rather than the hope they had experienced on her return, leading many to turn to the congregation of Father Wendel and his Acolyte Emmy; IT boss Lukas is in daily radio contact with Donald in Silo 1, trying to discover more about the world before; Jimmy Parker and the kids await Jules promised return to Silo 17 with mixed emotions; Donald, still posing as Thurman, tries to find a way to help Silo 18 in an attempt to atone for his role in the Silo scheme, while his sister, Charlotte is busy modifying drones to seek out an uncontaminated place. Just when the reader believes all the shocking measures instituted by the architects of the Silo scheme are known (the Cleaning with its the deliberately faulty suits, the Population Control, the destruction of Silos in revolt, the isolation from other Silos), Jules uncovers yet another indicator of their ruthlessness that will leave the reader gasping. Once again, Howey gives the reader an interesting plot with several twists, plenty of suspense and an exciting climax (or two or three). His characters are complex and compelling and their assessment of their situation is often relevant in the greater world. Donald muses that Mankind had the right to go extinct. Thats what life did: it went extinct. It made room for the next in line. But individual men had often railed against the natural order and he is told by Thurman the most difficult task mankind ever tried to master and that we never quite managed was how to pass supreme power from one hand to the next. Donald finally tells Charlotte Maybe the kinds of people who try to shape the world feel like theyre smarter than chaos itself. This gripping page-turner may be the last of the series, but readers would very likely welcome a further update on the world Howey has created. Another excellent read.