The Moon Pool - In the middle of the South Pacific, among the islands of Polynesia, there is a lost world under the earth's surface, home to the evil Shining One and its acolytes. A party of archeologists stumble upon this lost subterranean land and must fight to save their own world on the earth's surface.
The Moon Pool by Abraham Merritt (1884-1943), known as A. Merritt, was originally published as a short story in All-Story Weekly: "The Moon Pool" in 1918. Its novel length sequel, "Conquest of the Moon Pool" followed in 1919. These were then reworked into a novel released in 1919.
The Moon Pool (1918) - What was the dread cold thing that stole forth from white moonlightto stalk back with human prey?
The Conquest of the Moon Pool (1919) - Beauty incomparabledevilish malignity unspeakable!what dread secret lay in wait in the lair of the Shining One?
Afterward - Ponape- The Real "Moon Pool"