This rare book on the "Hollow Earth" theory was originally published in 1908 by Willis George Emerson, who relates the adventures of one Olaf Jansen, a Norwegian seafarer. His eloquent story of a land beyond the North pole was only one of many in its time. Many of the modern-day "polar myth" theories can trace their origins to these incredible journeys.

Jansen claimed that the northern aperture, intake or hole, so to speak, is about 1,400 miles across. He also reports that this area is inhabited by a race of tall human-looking beings who, he claims, were driven out of the Garden of Eden,...