The Lost Continent
Weatherby Chesney
The Smoky God, or, A Voyage to the Inner World
Willis George Emerson
Atlantida
Pierre Benoit & Mary C. Tongue & Mary Ross
The Lost City
Joseph Badger, Jr.
Aleister Crowley
The Moon Pool
A. Merritt
Walter Goodwin (1)
Dwellers in the Mirage (Part 1 of 6)
The Face in the Abyss
Nicholas Graydon (1)
The Metal Monster
Walter Goodwin (2)
Unveiling a Parallel
Ella Merchant
The People of the Pit
Thyra: A Romance of the Polar Pit
Robert Ames Bennet
The Goddess of Atvatabar
William R. Bradshaw
The Dwellers in the Mirage
Red Tree Frogs
Elmer Brown Mason
Dian of the Lost Land
Edison Marshall
In the Depths of the Dark Continent; Or, The Vengeance of Van ...
Cornelius Shea
They Found Atlantis
Dennis Wheatley
The Citadel of Fear
Francis Stevens
Under the Andes
Rex Stout