David Innes returns to the hollow earth land of Pellucidar to resume the human war of independence, but he has to fight some more personal battles first.
| ISBN: | 9781633846425 |
| Publication date: | 10th June 2015 |
| Author: | Burroughs, Edgar Rice |
| Publisher: | Wilder Publications, Inc. |
| Format: | Ebook (Epub) |