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,...

Armed with secret knowledge, Juliette, now mayor of Silo 18 and her crew set out to rescue a world she hates but now understands better -- the world of the Silos with its rigid rules and terrible consequences for disobedience. This is the last installment in the trilogy that began with Wool and was followed by Shift.

Princess Patema lives in an underground world, but one day tumbles headlong into a void and out into the wide open world above the surface. Age is a student on this surface world when he spies Patema hanging upside-down from a tree. He pulls her down to safety, struggling to keep her earthbound. Together they master the art of navigating competing gravitational forces and set out to discover the secret that keeps their worlds apart.

Beneath the ice at the bottom of the Earth is a magnificent subterranean labyrinth, a place of breathtaking wonders-and terrors beyond imagining. A team of specialists led by archaeologist Ashley Carter has been handpicked to explore this secret place and to uncover the riches it holds. But they are not the first to venture here-and those they follow did not return. There are mysteries here older than time and revelations that could change the world....

For eons, the city of Troy--whose legendary fall was detailed in Homer's Iliad--was believed to be myth, until archaeologists in the nineteenth century uncovered its ancient walls buried beneath the sands. In the frozen tundra of Greenland, a group of modern-day researchers stumble on a shocking find: a medieval ship buried a half-mile below the ice. The ship's hold contains a collection of even older artifacts--tools of war--dating back to the Bronze...

As young archaeologist Will Burrows continues to search for his lost father in the strange underground world he has discovered beneath the city of London, he stumbles across a sinister plot with terrible implications for the world above.

Four generations ago, the Earth was rendered uninhabitable and those who remained were forced underground. In Compound Eleven, the hierarachy of floors is everything and on Eve Hamilton's floor, they fight. When she meets a boy from the top floor, Eve is no longer content to just survive, she is ready to fight for freedom.

Determined to prove her conspiracy theorist father's beliefs about lost Cold War technology, Gillian, her skeptical brother, and their friends journey to the ruins of a vast doomsday bunker before they are confronted by dangerous adversaries.

For centuries, the residents of the underground City of Ember have flourished in an amazing world of glittering lights and quiet contentment. But when the City's massive power generator begins to fail, the streetlamps fade - along with the hopes of the townspeople. Now it will be up to two courageous teenagers to follow a trail of clues left by the ancient builders to find the way out of Ember before their world is plunged into complete darkness.