While exploring the caves around Dragon's Mouth Cavern, a series of unusual and somewhat frightening events convinces the Alden children that someone does not want them around.

Text and labeled illustrations describe the formation and physical features of various kinds of caves, with a brief section on spelunking.

Wildlife storys of animals that live in caves.

Deep in Southern Mexico's jungle, the Villa Luz limestone caves support an ecosystem that thrives in a highly poisonous, acidic environment. This rare type of cave is found in few spots on Earth. The Villa Luz, is known for the bacteria in its thermal sulphur springs that produce hydrogen sulfide gas. When the gases form bonds with oxygen, the result is sulfuric acid. The acid eats away at the cave walls, constantly altering the patterns in the cretaceous...

Wiglaf joins the other students of Dragon Slayers' Academy in searching the Dark Forest for the Cave of Doom, which supposedly contains the gold of the dead dragon Seetha.

The Sheep Eaters relied heavily on the plants they could gather for medicinal and edible uses, often cooking food in a unique soapstone vessel.

The gnomes of the Stone Forest are in trouble when all the gems in the forest lose their shine, so Prince Lucas and Lady Clara help the gnomes before their home changes forever.

Mia and Deshawn are not excited by a surprise stop at Maximum Caverns during a family vacation, but when their guide, Raven, is injured, the siblings must navigate an advanced route and summon help. Includes glossary, discussion questions, writing prompts, and information about spelunking.

A brilliant and beautiful scientist and a mysterious special ops soldier must lead a team deep into the Earth on a desperate hunt for the cure to a deadly epidemic.

"Two sisters go missing on a remote Scottish island. Twenty years later, one is found-but she's still the same age as when she disappeared. The secrets of witches have reached across the centuries in this chilling Gothic thriller from the author of the acclaimed The Nesting. When single mother Liv is commissioned to paint a mural in a 100-year-old lighthouse on a remote Scottish island, it's an opportunity to start over with her three daughters-Luna,...