In a ruined and toxic landscape, a community exists in a giant silo underground, hundreds of stories deep. There, men and women live in a society full of regulations they believe are meant to protect them. Sheriff Holston, who has unwaveringly upheld the silos rules for years, unexpectedly breaks the greatest taboo of all: He asks to go outside.His fateful decision unleashes a drastic series of events. An unlikely candidate is appointed to replace...

Having escaped to the Unknown Regions, Lina and the others seek help from the village people of Sparks.

"Zachary Ezra Rawlins is a graduate student in Vermont when he discovers a rare book hidden in the stacks. As he turns the pages, entranced by tales of lovelorn prisoners, key collectors, and nameless acolytes, he reads something strange: a story from his own childhood. Bewildered by this inexplicable book and desperate to make sense of how his own life came to be recorded, Zachary uncovers a series of clues -- a bee, a key, and a sword -- that lead...