In a ruined and toxic landscape, a community exists in a giant silo underground, hundreds of stories deep. In a society full of regulations meant to protect the community, Sheriff Holston, unexpectedly breaks the greatest taboo of all: he asks to go outside. An unlikely candidate is appointed to replace him: Juliette, a mechanic with no training in law, whose special knack is fixing machines. Now Juliette is about to be entrusted with fixing her silo,...

In the year 241, twelve-year-old Lina trades jobs on Assignment Day to be a Messenger to run to new places in her decaying but beloved city, perhaps even to glimpse Unknown Regions.

The much-anticipated final instalment of the Wool trilogy. In a time when secrets and lies were the foundations of life, someone has discovered the truth. And they are going to tell. Jules knows what her predecessors created. She knows they are the reason life has to be lived in this way. And she won't stand for it. But Jules no longer has supporters. And there is far more to fear than the toxic world beyond her walls. A poison is growing from within...