YOU'VE been calling on us for it and here it is-a sequel to Burroughs's smashing cave-man romance, "At the Earth's Core", which made such a hit when it came out in the All-Story Weekly just before the amalgamation. The same cast-David lnnes, the two-fisted hero; Professor Perry, his scientist companion who invented the wonderful Iron Mole; Dian the Beautiful One, belle of the cave-women; Hooja the Sly One, the traitorous outlaw; the Mahar folk, those weird reasoning reptiles; and their gorillalike soldiery, the Sagoths. The same setting-Pellucidar, another world, five hundred miles beneath this earth's surface. The same author, Edgar Rice Burroughs, author of more sensational novels than any writer whose work appears in this magazine. The same life, the same thrills, the same action-go-dash. The same-only more so.