7 books in series
Pellucidar
Pellucidar is a 7-book series with 7 released primary works first released in 1914 with contributions by Edgar Rice Burroughs.
| #1 |  At the Earth's Core
| 3.43 | 7 reads | ||
| #2 |  Pellucidar
| 3.67 | 3 reads | ||
| #3 |  Tanar of Pellucidar
| 4 | 0 reads | ||
| #4 |  Tarzan at the Earth's Core
| 3.67 | 2 reads | ||
| #5 |  Back to the Stone Age
| 4 | 0 reads | ||
| #6 |  Land of Terror
| 3 | 1 read | ||
| #7 |  Savage Pellucidar
| 4 | 0 reads |