I would like to share few informations regarding the shape of the Earth according to this book.
This book make reference to another books and articles in tge Sunday Tribune on August 3, 1913 to prove the point of the Hollow Earth such as Marshall R Gardner.
There is a belief that there is a big Sun in the Earth Interior that there are immense holes where the poles are suppose to be and the phenomena of Aurora Borealis and the Aurora Australis are the result of the interior sun shining through the polar holes.
The earth's interior instead of being a molten mass of kava is hollow and contains a central nucleus or material sun of about 600 miles in diameter.
The polar openings were 1400 miles in diameter. The Earth crust is approximately 800 miles thick.
The mamooth originated inside the earth and these animals still.live there. The huge carcasses that have been found frozen in the arctic are not prehistoric. These are animals that wandered out of the interior and froze when they reached the arctic.
George H Darwin and. Horace Darwin two brothers stated in 1882 at a meeting of the British Association for the Advancement of Science that Earth Trembles like a Soap Bubble.
According to Buddhist doctrine Agartha is a subterranean landlocked deep in the center of our planet. The Buddhists believe that there are milling of people living in this Underworld paradise. Their daily lives and ultimate destiny is directed by a roller known ad Rigden-jyepo The King of the World. From his place in Shambala he directs many of the activities of homo sapiens on the surface world.
Lhasa the Tibetan Capital was connected to Shambala by a network of tunnels. The same tunnels are connected to the great Pyramid of Giza where there is a mysterious subterranean chamber.
Gunter Rosenberg research states that he felt that old Pharaohs of Egypt were in contact with the super Gods of the Underworld through emisaries from Shambala.
Nudist scriptures claims that Agharta was funded many millions years ago in the pre-history.
Budist traditions claims that there are visitors from the Underworld to the surface in the time of turmoil according to Rosenberg.
There are books talking about Underworld such as "Shambala " by Nicholas Roerich published in 1930.
The author Indrid Cold seems to make reference to a lot of old books from the 19th and beginning of the 20th century. It is possible that the author has a connection with the inner earth and is also of an old age.