Pellucidar
Book 4 of this series, "Tarzan at the Earth's Core", is listed as book 13 in the Tarzan series.
Titles (15)
| # | Title | Author(s) | Year | Type |
|---|---|---|---|---|
| 1 | At the Earth's Core | Edgar Rice Burroughs | 1922 | |
| 2 | Pellucidar | Edgar Rice Burroughs | 1923 | |
| 3 | Tanar of Pellucidar | Edgar Rice Burroughs | 1930 | |
| 5 | Back to the Stone Age | Edgar Rice Burroughs | 1937 | |
| 6 | Land of Terror | Edgar Rice Burroughs | 1944 | |
| 7 | Savage Pellucidar | Edgar Rice Burroughs | 1963 | Collection |
| Three Science Fiction Novels | Edgar Rice Burroughs | 1963 | Omnibus | |
| At the Earth's Core / Pellucidar / Tanar of Pellucidar | Edgar Rice Burroughs | 1963 | Omnibus | |
| Au cœur de la Terre & Pellucidar | Edgar Rice Burroughs | 1966 | Omnibus | |
| Tanar de Pellucidar / Tarzan au cœur de la Terre | Edgar Rice Burroughs | 1967 | Omnibus | |
| Retour à l'âge de pierre / Terre d'épouvante | Edgar Rice Burroughs | 1969 | Omnibus | |
| Pellucidar: the Inner World: Volume 1 | Edgar Rice Burroughs | 2006 | Omnibus | |
| The Gilak's Guide to Pellucidar | David Critchfield | 2007 | Nonfiction | |
| The Hollow Earth | Edgar Rice Burroughs | 2012 | Omnibus | |
| The Pellucidar Series: The Complete & Definitive Edition | Edgar Rice Burroughs | 2021 | Omnibus |