[8/8] David and Dian return to Sari to set up the federation of nations..

Edgar Rice Burroughs' "At the Earth's Core" appeared as a four-part serial in ALL-STORY WEEKLY (April 4 to 25, 1914).

[7/8] David battles a ravenous dragon and a seven-foot savage to rescue the woman he loves—only to discover her heart is fiercer than any beast.

Edgar Rice Burroughs' "At the Earth's Core" appeared as a four-part serial in ALL-STORY WEEKLY (April 4 to 25, 1914).

[6/8] Condemned to the vivisection pits of Phutra, a desperate fugitive slays his way to the Mahar’s forbidden secret and flees into the wilds—only to face traitors, ravenous beast-kings, and tireless Sagoth hunters on his blood-soaked trail!

[5/8] Cast back into the shadowed halls of Phutra, a weary wanderer faces merciless investigators and ravenous prehistoric terrors, gambling his life for a desperate chance to save his friends—and win back the woman haunting his dreams!

Edgar Rice Burroughs' "At the Earth's Core" appeared as a four-part serial in ALL-STORY WEEKLY (April 4 to 25, 1914).

[4/8] Fleeing the hypnotic slaughter-pits of the Mahars, a lone castaway braves island jungles, monstrous sea serpents, and treacherous tribes as he fights to win freedom—and return for the friend he left behind!!

Edgar Rice Burroughs' "At the Earth's Core" appeared as a four-part serial in ALL-STORY WEEKLY (April 4 to 25, 1914).

[3/8] Dragged into the reptile-ruled depths of Phutra, desperate slaves plot a mad escape beneath the unblinking inner sun—while the monstrous Mahars prepare a blood-soaked spectacle of beasts and doom!

Edgar Rice Burroughs' "At the Earth's Core" appeared as a four-part serial in ALL-STORY WEEKLY (April 4 to 25, 1914).

[2/8] Hurled into the blazing noonday of the earth’s hollow heart, two helpless captives are driven in chains toward the monstrous Mahars—winged overlords who rule Pellucidar with terror and slave-blood!

Edgar Rice Burroughs' "At the Earth's Core" appeared as a four-part serial in ALL-STORY WEEKLY (April 4 to 25, 1914).

[1/8] A runaway “iron mole” plunges two unsuspecting explorers into a hidden inner world where ravenous beasts, savage tree-folk, and a motionless sun hurl them headlong into screaming adventure!

Edgar Rice Burroughs' "At the Earth's Core" appeared as a four-part serial in ALL-STORY WEEKLY (April 4 to 25, 1914).