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As Will Burrows continues to search for his lost archaeologist father in the strange underground world he has discovered, he stumbles across a sinister plot with terrible implications for the world

Once more Chet, Walt and Diane are united in a wild ride to the Dark Moon—but this time they go as prisoners of their deadly enemy Schwartzmann.

Mysterious, dark, out of the unknown deep comes a new satellite to lure three courageous Earthlings on to strange adventures.

Through Infinite Deeps of Space Jerry Foster Hurtles to the Moon- Only to be Trapped by a Barbaric Race and Offered as a Living Sacrifice to Oong, their Loathsome, Hypnotic God.

Originally Project Gutenberg/Librvox.

Rawson learns to his cost that the life-spark of a fabled race glows in the black heart of a dead, Western volcano.

As fourteen-year-old archaeologist Will and his friends plummet down a subterranean pore, they face deadly creatures and discover a strange fungal shelf, which not only reveals artifacts from ancie

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 sin

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 so

The outer crust is under attack by the subterranean Styx who are turning ordinary humans into walking bombs and incubators for their eggs, and only Will Burrows and his band of retired commandos st