Richard Mayhew is a young businessman with a good heart and a dull job. When he stops one day to help a girl he finds bleeding on a London sidewalk, his life is forever altered, for he finds himself propelled into an alternate reality that exists in a subterranean labyrinth of sewer canals and abandoned subway stations below the city. He has fallen through the cracks of reality and has landed somewhere different, somewhere that is Neverwhere.

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.

Illustrations and rhyming text reveal events happening in varied environments, from an icy sea to a blistering desert, while very different things occur down below.

"It was supposed to just be a normal basement--some storage boxes, dust, you know, the usual basement stuff. But when Milo is sent by his mother to fetch a sock from the basement of the historic home they've moved into, Milo finds a door in the back that he's never seen before. Turns out that the basement of his house is enormous. In fact, there is a whole world down there. As Milo travels ever deeper into the Basement World, he meets the many Things...

When Neverfell, who has no memory, arrives in Caverna, her facial expressions make her very dangerous to the people who live with blank faces or pay dearly to learn to simulate emotions.

When Will Burrows and his friend Chester embark on a quest to find Will's archaeologist father, who has inexplicably disappeared, they are led to a labyrinthine world underneath London, full of sinister inhabitants with evil intentions toward "Topsoilers" like Will and his father.

"Beneath the cover of France's most exquisite vineyards, a city of women defy an army during World War I.... Deep within the labyrinth of caves that lies below the lush, rolling vineyards of the Champagne region, an underground city of women and children hums with life. Forced to take shelter from the unrelenting onslaught of German shellfire above, the bravest and most defiant women venture out to pluck sweet grapes for the harvest. But wine is not...

A short study of everything that goes on under London--from original springs and streams and Roman amphitheaters to Victorian sewers, gang hideouts, and modern tube stations.

"Six months after vanishing into an underground silo with sixty others, Wynter and Chase emerge to find the area abandoned. There is no sign of Noah and the rest of the group that was supposed to greet them when they emerged--the same people Wynter was counting on to help her locate the IV antibiotics her gravely ill friend, Julie, needs in order to live. As the clock ticks down on Julie's life, Wynter and Chase embark on a desperate search for medicine...

Will Burrows believes he is safe at the very center of the earth, in a world that no one knows exists, but the Styx are close behind and will follow him anywhere, while on the surface, Drake and some unlikely allies unearth some critical secrets.