In this sequel to At the Earth's Core, return to the world of Pellucidar-an exotic, savage land at the center of the Earth, an untamed wilderness where the sun never sets. When American explorer David Innes first discovered Pellucidar, he fell under the spell of the strange world, earning the respect of many, the undying hatred of a few, and the love of the beautiful Dian. Torn from her arms by trickery, Innes vows revenge and returns to the Inner...

This story is set in the great country that lay beyond the Grey Havens in the West: lands where Treebeard once walked but were drowned in the great cataclysm that ended the First Age of the World.

When Mrs. Connor's class celebrates Earth Day, Emma decides to start small by recycling, using only what she needs, and picking up trash when she goes for a walk.

A one-volume edition of the trilogy which tells of the quest undertaken by the hobbit Frodo and his companions to journey across Middle-earth and cast the evil One Ring, into the Cracks of Doom.

The authorized sequel to Arthur C. Clarke's science fiction classic Against the Fall of Night, set on a dying planet Earth millions of years in the future. In Against the Fall of Night, a young man named Alvin ventures beyond the domed city of Diaspar to explore a planet Earth left nearly barren by a centuries-old cataclysm. What he discovers is the thriving rural civilization of Lys and an insane non-corporeal being known as the Mad Mind-a danger...

Describes the first-ever Earth Day held in 1970 and discusses the ensuing rise of the environmental movement that has since grown to become a major source of inspiration to Americans and others around the world.

The standard hardcover edition of the second volume of The Lord of the Rings includes a large format fold-out map. Frodo and his Companions of the Ring have been beset by danger during their quest to prevent the Ruling Ring from falling into the hands of the Dark Lord by destroying it in the Cracks of Doom. They have lost the wizard, Gandalf, in a battle in the Mines of Moria. And Boromir, seduced by the power of the Ring, tried to seize it by force....

Presents a tour of the Earth, depicting an assortment of animals and plants, and such natural wonders as mountains, forests, rivers, deserts, oceans, and rainforests.

Prior to 1977, effect of mine subsidence was not fully considered. A lack of awareness of subsidence potential, combined with urban expansion, resulted in many homes and neighborhoods being built over these old mines. Subsidence over abandoned coal mines is a potential hazard for an estimated 25,000 people and 7,500 houses along the Front Range Urban Corridor (2004 figures).