A chance discovery of a large crevasse at the North Pole in the 1800s took our intrepid explorers into another world beneath the surface of the earth. It became one of the first encounters with people living in a place now called Hollow Earth. A hundred years later, another visitor had a less than friendly encounter. The three races of Hollow Earth had lived in peace for many centuries after a great war. But their world became threatened by a series of underground nuclear explosions that came from the surface. The people on the surface were totally ignorant of their existence and continued their explosions. Despite the Hollow Earth people being very cautious about retaliation, their patience had finally run out by the 2020s. The latest visitor became a pawn in a potential war that threatened every living thing on the surface. The Hollow Earths advanced technology meant that the surface dwellers were going to be in the fight of their lives, and they had no idea why.

1964 Dr. Bernard says this is the true home of the flying saucers. the epoch-making significance of Adm. Byrd's flight for 1,700 miles into the North Polar opening leading to the hollow interior of the earth, the home of a Super Race who are the Creators.

Possessing extraordinary powers, including the ability to bring artwork to life, twelve-year-old twins Matt and Emily are sought by villains trying to access the terrors of Hollow Earth, a place where demons and mythological beasts lie trapped for eternity.

Beliefs in mysterious underworlds are as old as humanity. But the idea that the earth has a hollow interior was first proposed as a scientific theory in 1691 by Sir Edmond Halley (of comet fame), who suggested that there might be life down there as well. Hollow Earth traces the surprising, marvelous, and just plain weird permutations his ideas have taken over the centuries. From science fiction to utopian societies and even religions, Hollow Earth travels through centuries and cultures, exploring how each era's relationship to the idea of a hollow earth mirrored its hopes, fears, and values. Illustrated with everything from seventeenth-century maps to 1950s pulp art to movie posters and more, Hollow Earth is for anyone interested in the history of strange ideas that just won't go away.

In the winter of 1947, Admiral Richard E. Byrd allegedly flew a secret mission across the frozen waters of the arctic. There, he claimed to have seen a previously unknown land with forests and even prehistoric animals. Even more incredible, he encountered flying discs from a technologically advanced civilization hidden deep within the hollow Earth. This incredible adventure is revealed in Byrd's diary which had been missing for many years. Had it been sealed away by the U.S. government in fear of the haunting message given to Byrd by the inhabitants of the hollow Earth? Or is the truth even more shocking? We now know that at the time referenced in Byrd's missing diary, he had actually been part of the Navy mission to Antarctica called Operation Highjump. This mission may have been a massive operation to uncover a secret Nazi stronghold hidden away in Antarctica...a stronghold that allegedly had a connection to Hitler's search for the entrance into the hollow Earth. This is the mystery. What is the secret of Admiral Richard E. Byrd's Missing Diary? Is it government disinformation to hide Byrd's search for the last remnants of the Third Reich? Or is it a warning for the inhabitants of the surface world..."Change your warlike ways before it is too late!" Admiral Richard E. Byrd's Missing Diary is a shocking revelation of the mystery of the Hollow Earth and the possible secret origin of UFOs, which was called "The Greatest Secret Since the Manhattan Project!" A Zontar Press Book