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

"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...

Revisit the remarkable debut novel that launched the career of New York Times bestselling author James Rollins.

The Earth's last mystery is about to be revealed...The world beneath the world is waiting.

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

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When a sinkhole opens up and swallows one of Bayport's historic statues, Frank and Joe suspect something--or someone--shady at play. They jump at the chance to investigate ; Joe as a member of an urban exploration club, and Frank as photographer for the school paper. But in the thick of their search, the boys stumble upon an entire underground city that's been abandoned for years. Now the city is home to a cultish band of criminals who plan to take...

"The third pulse-pounding novel in an epic fantasy series set in the same world as the wildly popular Red Sister, following an outcast who will fight with everything she has to survive. On the harsh planet of Abeth, covered with ice except along a narrow corridor, Yaz has had to fight hard to survive, and she's made friends-and enemies-along the way. The Convent of Sweet Mercy, like the Corridor itself, is packed with peril and opportunity. Yaz needs...

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.

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,...