"In this futuristic high-stakes adventure, humanity clings to cities on the highest mountain peaks above the deadly Fog, and airships transport the pirates of the skies. Daring 13-year-old tetherboy Chess and his salvage crew must face the dark plans of Lord Kodoc and work to save their beloved Mrs. E"-- Provided by publisher.

Genetically engineered to survive in the ocean, Nere and her friends are recovering from their treacherous journey to Safety Harbor, an undersea refuge founded by the scientists of the Neptune Project. But plenty of enemies prowl just outside the colony's boundaries, and when two of the children are kidnapped, Nere, her loyal dolphins, and the other Neptune kids must set out on an expedition even more perilous than their first. Tasked with infiltrating...

More than a century after a catastrophic disaster wiped out most of humanity and covered much of the earth with ice, fifteen-year-old Cass yields to the voice in her head urging her to embark on a dangerous journey across a poisoned sea to the mythical land, Blue.

"Thirteen-year-old tetherboy Chess and his crew may have escaped the slums, but they cannot escape the Fog. When they retreat to the mountaintop sanctuary of Port Oro, they discover that the deadly white mist will soon swallow the entire city. Will the slumkids be able to save Port Oro, or will they run out of time?"-- Provided by publisher.

"A group of kids who have been genetically altered to survive in the ocean must embark on a dangerous underwater journey to find refuge--and maybe even a way to save the world"-- Provided by publisher.

Elite party girl Yarrow, the daughter of one of the most powerful women in Eden, and Rowan, whose very existence is illegal, discover threads that bind them and could change Eden forever.

The Voyagers have made it to the last planet but must acquire a seventh element, combat dragons and an alien clone, and face serious illness before returning to Earth.

After being hit by a car Sam Palmer finds himself in Aurobon, a land of giant insects where some of the inhabitants are working to keep Earth's ecology in balance while others are trying to wipe out humankind with a lethal virus spread by mosquitoes.

Desperate to escape the dangers of the ruins of New Kandy, Nat and Wes must put their love to the ultimate test by chancing even more perilous surroundings in hopes of seeing their world reborn by saving the source of magic.

"Franny Stone has always been a wanderer. By following the ocean's tides and the birds that soar above, she can forget the losses that have haunted her life. But when the wild she so loves begins to disappear, Franny can no longer wander without a destination. She arrives in remote Greenland with one purpose: to find the world's last flock of Arctic terns and follow them on their final migration. She convinces Ennis Malone, captain of the Saghani,...