Edgar Rice Burroughs concluded his Caspak trilogy with Out of Time’s Abyss (1918), serialised in The Blue Book Magazine. British soldier Bradley is captured by the Wieroos — pale, winged humanoids who rule a vast underground city on the island of Caspak — and must escape while the trilogy’s central mystery of accelerated evolution reaches its resolution. Burroughs maintains his characteristic kinetic pace throughout, and the Wieroo civilisation is among his more genuinely unsettling inventions.
This free EPUB delivers the complete text in a clean reformatted edition for any device. Read after The Land That Time Forgot and The People That Time Forgot for the full Caspak experience, or enjoy it as a self-contained lost-world adventure from one of pulp fiction’s most inventive architects.