Background
Howey began the series in 2011, initially writing ''Wool'' as a short story. He published the work through Amazon's Kindle Direct Publishing system, opting forWorks
Novels
Originally published as novellas, the series is commonly packaged as three novels. ; 1. Wool (2011) : Contains the novellas: :* ''Holston'' (short story) :* ''Proper Gauge'' :* ''Casting Off'' :* ''The Unraveling'' :* ''The Stranded''Short Stories
Short stories (published in '' The Apocalypse Triptych'' and Howey's anthology ''Machine Learning'') * "In the Air" (2014) * "In the Mountains" (2014) * "In the Woods" (2015)Plot
The story of ''Wool'' takes place on a post-apocalyptic Earth. Humanity clings to survival in the Silo, a self-sustaining subterranean city with 144 floors. No records of the time before the Silo remain. All residents of the Silo are taught that the outside world is toxic and deadly, and the Silo's cardinal rule is that anyone who expresses a desire to go outside must be sent outside to clean the external sensors of the silo, while facing certain death. The deaths of those sent to clean reaffirm to the Silo residents that the outdoors remain uninhabitable.''Wool''
''Wool'' is the first act of the series and consists of books 1 through 5: ''Holston'', ''Proper Gauge'', ''Casting Off'', ''The Unraveling'', and ''The Stranded''. Holston is the sheriff of the Silo. Three years ago, Holston's wife, Allison, became convinced that the outside world was livable and that the IT department, which runs the external sensors, had deceived the rest of the Silo. She went to clean willingly but apparently perished. Still grieving the loss of his wife, Holston also asks to go outside. He is given a protective suit and sent outside, but when he exits the Silo, he sees a healthy, vibrant world. Encouraged by this sight, he happily cleans the Silo's external sensors and then explores the environment. However, he is forced to remove his helmet when he runs out of air, and at that point, he discovers that the world is actually toxic and his wife truly is dead. The suit's visor had been masking reality with a computer-generated image. Holston dies near his wife's abandoned body. Following Holston's deaths, Mayor Jahns and Deputy Marnes embark on a trip to the Mechanical zone, the Silo's lowest level, to interview Juliette Nichols, their top candidate for sheriff. Along the way, they visit the IT department. Bernard, the head of IT, demands his own preferred candidate for sheriff, but Jahns is dismissive. Later, Jahns is impressed by Juliette, who quickly proves herself to be responsible, stubborn, and independent. Juliette agrees to become sheriff on the condition that she is permitted to perform long-overdue mechanical maintenance, which requires a power blackout, and Jahns assents to the plan. Bernard is incensed by the blackout and Juliette's appointment and poisons Marnes's canteen on their way back up, resulting in Jahns's death. Bernard is elevated to mayor and eventually replaces Juliette with his own choice for sheriff, Peter Billings (another of the suggested people to take over as sheriff). He also trains a man named Lukas to become his successor and teaches him the secrets of IT: the IT department is the true power in the Silo, and records of knowledge from the old world have not been lost but confiscated and sealed in a hidden chamber. However, Peter's honesty and pursuit of justice make it difficult for Bernard to control him, and Lukas is not interested in perpetuating Bernard's agenda. Bernard finally finds a pretext to condemn Juliette to a cleaning, but one of Juliette's friends in Mechanical, Walker, secretly arranges for her protective suit to be made out of quality materials, unlike all previous protective suits, which were secretly designed to fail and constructed of intentionally defective materials. When she exits the Silo, Juliette realizes that her suit's visor contains a high-resolution display and is deceiving her. Instead of cleaning the sensor, she becomes the first cleaner to walk out of the sensor's range of sight. Juliette finds the entrance to another Silo. Inside, she encounters a middle-aged man calling himself Solo, who explains that this is Silo 17 and he is the last survivor of an uprising decades ago. Solo reveals that there are dozens more Silos, and he shows Juliette how to communicate with them, including her own Silo 18. Juliette makes contact with Lukas, and they develop a relationship. He also tells her about IT's secrets and relates that after she left, Silo 18's Mechanical staff launched a rebellion against Bernard. When Bernard decides to send Lukas to clean, Peter has Bernard placed in the airlock instead and demands he defend his actions. While arguing with Juliette via radio, Bernard reveals his driving purpose was to protect Silo 18. Rebellions frequently disrupt silos, but most are put down; when a rebellion is successful, the Silos' managing authority in Silo 1 will exterminate that Silo's inhabitants. Bernard only wanted to maintain order in Silo 18 and prevent any rebellions from breaking out. However, Peter judges that in working toward that aim, Bernard committed crimes against the Silo and sends him out to clean. Juliette thinks Lukas is being sent out and tries to save the person released into the air lock, which is actually Bernard. Bernard refuses to go outside or be saved by Juliette and dies in the airlock during the cleansing fire. Lukas assumes control of IT. Juliette, while recovering from her burns, is elected as Silo 18's next mayor by a grateful populace.''Shift''
''Shift'' is the second arc of the series, consisting of books 6 through 8: ''Legacy'', ''Order'', and ''Pact''. It is a prequel to the Wool arc. In 2049, freshman Congressman Donald Keene is recruited by Senator Paul Thurman for the CAD-FAC (Containment and Disposal Facility) project, ostensibly an underground repository for the world's nuclear waste to be constructed in Fulton County,''Dust''
''Dust'' is the third and final arc of the series, contained in a single book of the same name. It concludes the stories begun in ''Wool'' and ''Shift''. Donald maintains regular contact with Juliette and Lukas in Silo 18, but his health begins deteriorating rapidly. During this back and forth with Donald, Juliette decides to conduct experiments to determine just how poisonous the outside air really is. As a result of these tests she eventually learns that the benign Argon gas that they’ve been pumping into the airlock with every cleaning isn’t gas at all, but is in fact clouds of deadly nanobots programmed to eat away at the inferior tape on the suits and then kill the occupant inside. During this time, the residents of Silo 18 undertake the excavation of a tunnel to Silo 17; Thurman is awakened and reasserts control over Silo 1, resulting in Donald being beaten and imprisoned. The tunnel breaks through to 17 just as Thurman notices that 18 has gone rogue and orders its termination, and only about 200 residents make it to safety before 18 is saturated with deadly nanobots, claiming the life of Lukas. Donald's sister Charlotte, who was woken up by the former against the Silo's rules, and a sympathetic security officer named Darcy free Donald and try to escape Silo 1 together. Donald is dying and too weak to leave. He persuades Charlotte and Darcy to go without him while he plans to blow up Silo 1's reactor so that the other Silos are free from the tyranny of Thurman and Operation Fifty. Darcy sacrifices himself so Charlotte can make it out safely, just as Donald destroys Silo 1. Meanwhile, Juliette discovers that all Silos possess a tunneling machine that, when activated, will connect them to a place designated "Seed". Silo 17's machine requires more fuel than is available, so Juliette and a group of willing survivors try to walk to Seed over the surface using modified pressurized cleaning suits and oxygen tanks. They emerge from a wall of dust and realize the world has already healed itself. It is revealed that the Silos are enshrouded by an artificial veil of ''toxic dust'' that is likely formed by nanobots, but beyond them, there is breathable air, clean water, and a thriving ecosystem. When Juliette and the survivors arrive at Seed, they find it is a sprawling bunker replete with food, materials, and plant seeds, everything needed to rebuild civilization. Charlotte encounters the group, and Juliette invites her to join them to rebuild human civilization together.Reception
A reviewer for '' Wired'' praised the initial novellas, and their collective ''Wool'' omnibus, while also noting that their publication "clears away the grime of the past and reveals the new truth" about changes in the publishing industry.Adaptations
Film and television
Since its initial publication, attempts have been made to adapt the ''Wool'' series into a film or television series. Film rights for the story were sold in May 2012 toComic book adaptation
In July 2013, Amazon's new comic book imprint ''Jet City Comics'' announced it would release a comic book adaptation of the series.Kindle Worlds
The "''Silo'' Saga" was one of the first settings licensed in 2013 for the Kindle Worlds platform for self-publishing fanfiction. By the time Kindle Worlds shuttered in 2018, 122 novels, novellas, and short stories set in the ''Silo'' universe had been published via the platform — the third most for any of the licensed series.Notes
References
See also
* '' The Penultimate Truth'', a 1964 science fiction novel with a similar theme by Philip K. DickExternal links
* {{official website, http://www.hughhowey.com/ 2012 American novels 2012 science fiction novels American science fiction novels Self-published books Science fiction book series Dystopian novels Post-apocalyptic fiction Fiction about nanotechnology