Prison of a Billion Years

Trollope, Anthony, 1815-1882

London, Jack, 1876-1916

Ashman, William [Illustrator]; Marks, Winston K. (Winston Kinney), 1915-1979

Sheehan, Perley Poore, 1875-1943; Means, E. K. (Eldred Kurtz), 1878-1957; Brand, Max, 1892-1944; Abdullah, Achmed, 1881-1945

Vidmer [Illustrator]; Samachson, Joseph, 1906-1980

Austen, Sidney

Ingels, Graham, 1915-1991 [Illustrator]; Brackett, Leigh, 1915-1978

Bergsøe, Vilhelm, 1835-1911

Terry, W. E., 1921-1992 [Illustrator]; Tenneshaw, S. M.

Freas, Kelly, 1922-2005 [Illustrator]; Harrison, Harry, 1925-2012

Soare, William Fulton, 1896-1940 [Illustrator]; Eggenhofer, Nicholas, 1897-1985 [Illustrator]; Humphreys, Ray