| | The Phantom of the Poles by William Reed [1906] |
The hollow earth has long been a popular alternative theory of the shape of the earth. Typically this theory also posits large holes at the North and South Poles which would allow entry into the interior.* In his 1906 book, The Phantom of the Poles, William Reed presents a collection of reports of polar explorers on strange and unexplained phenomena, such as warm winds, deposits of dust, rocks embedded in icebergs, large ice-free areas…