Mason is a dead man. He trusts his daughter to fulfill his last wishes. Sara cannot resist trying to uncover more about her fathers' secret life, especially after what he did during his cleaning. Follow Sara's tragic journey into the silo's resistance in this short story based on Hugh Howey's world of Wool. What reviewers are saying: "...a lot of unexpected twists and turns along the way." - Patrice M. Fitzgerald "Thomas Robins does a great job extending the Wool universe." -Debra Miller

The silo has strict population control policies. Robert discovers the reality, and heartache, of what happens when mandatory birth control fails. Follow Robert's journey to the silo's underground resistance as he aims to help those who discover they are pregnant without a license in this book set in Hugh Howey's world of Wool. The Underground books are individual stories about silo citizens finding themselves participating in the resistance movement. The Bishop takes place many years before the events in The Pawn. This story uses plot elements from Wool, parts one through five (i.e., Wool Omnibus).

The Order of the Free Silo was organized, hidden, and in control. At least, they had been. Joseph, the new head of IT, is determined to flush out his silo's long-standing secret organization to prove himself worthy of his new title.