The Shaver Mystery

From Kook Science

Robert Gibson Jones' "A Scene in the Caves", the cover for Amazing Stories' (21.6, June 1947) "special Shaver Mystery" issue.

The Shaver Mystery is a series of stories and articles detailing an underground civilisation ruled by the malevolent Deros, as originated by Richard S. Shaver, first published in Ray Palmer's Amazing Stories and Fantastic Adventures during the 1940s.