1952). Hollow Earth theory In 1974, Trench published Secret of the Ages: UFOs from Inside the Earth, a book which theorised that the centre of the Earth was hollow, with entrances to its interior located at both the north and south polar areas. The interior, he suggested, consisted of large tunnel systems connecting a large cavern world. Trench also believed that the lost continent of Atlantis actually once existed and that these tunnels were probably constructed all over the world by the Atlanteans, for various purposes. Trench believed that there was no actual North Pole, but instead a large area with a warm sea dipping gradually into the interior of the Earth. He said that humans were 'living on the deck of a ship, unaware of the life going on under our feet'. One argument he put forward for this theory was that whilst the Earth is spherical, it is flattened at the poles. Additionally, he questioned how all icebergs could be composed of frozen fresh water, if no rivers were flowing from the inside of the Earth to the outside. He had also suggested that a large proportion of unidentified flying objects (UFOs) emanated from the Earth's interior. These objects were likely to have been created by a group of much more technically advanced beings, similar to humans, but a group that likely possessed extrasensory abilities, as well as the ability to manipulate psychic phenomena. Another argument for the Hollow Earth theory was that everything he suggested, nebulae, comets and planets, are hollow and these conditions would certainly prove favourable for a hollow Earth. Whilst Trench had in one of his earlier books disregarded the Hollow Earth theory, he admitted to at the time 'being educated along with millions of other people to believe that the Earth had a liquid molten core'. Other claims According to Trench in his book The Sky People, Adam and Eve, Noah and many of the other characters from the Bible originally lived on Mars. Trench believed that Adam and Eve were experimental creations of extraterrestrials. His claim was that the Biblical description of the Garden of Eden was inconsistent with what was on Earth and as Mars contained canals, that the Garden of Eden must have been located on Mars. He further claimed that the north polar ice cap melted on Mars, and this caused the descendants of Adam and Eve to move