Ghak

Pellucidar

Also known as

Appearances

Weird Worlds #1 — 1972-08-00
Weird Worlds #2 — 1972-10-00
Weird Worlds #3 — 1972-12-00
Weird Worlds #4 — 1973-02-00
Edgar Rice Burroughs' At the Earth's Core #[nn] — 2015-08-19