| Answer | Crossword Clue |
|---|---|
| APRINCESSOFMARS | Edgar Rice Burroughs's first novel |
| EARTHS | "At The ... Core" (Edgar Rice Burroughs novel) |
| EARTHS | "At the ... Core" (Edgar Rice Burroughs novel) |
| EARTHS | "At The ..... Core" (Edgar Rice Burroughs novel) |
| ATTHEEARTHSCORE | 1914 Edgar Rice Burroughs novel set in an underground land |
