Ed Earl Repp 2 hr 47 min read

Beneath the volcanic Manalava Plains lies a gem-encrusted cavern and a pool of shimmering radium, guarded by creatures from space, and two men follow a vanished girl's trail into its depths.

Ed Earl Repp's 1929 story is a rousing hard-SF and lost-world adventure. Vivid, imaginative golden-age pulp. Read it for a colorful subterranean-world yarn of radium wonders, alien guardians, and a perilous quest, in the exuberant, scientifiction-flavored style of the early Gernsback pulps.

In its time

Published in 1949, during the 1940s, the golden age begins.

Reading it

2 hr 47 min read (a novel-length work, settle in).