6 books in series

Pellucidar

Pellucidar is a 6-book series with 6 primary works first released in 1914 with contributions by Edgar Rice Burroughs.

#1
At the Earth's Core

#1 of 6 in Pellucidar

1914 • 15 Readers • 181 pages 3.4

#3
Tanar of Pellucidar

1928 • 3 Readers • 312 pages

#4
Tarzan at the Earth's Core

1929 • 4 Readers • 336 pages

#5
Back to the Stone Age

1937 • 2 Readers • 336 pages

#6
Land of Terror

1944 • 4 Readers 2