Project Gutenberg 2021-11-24 Public domain in the USA. 120 Coblentz, Stanton A. (Stanton Arthur) 1896 1982 Coblentz, Stanton Arthur Paul, Frank R. (Frank Rudolph) 1884 1963 Paul, Frank Rudolph In Caverns Below Produced from Wonder Stories March, April, May 1935 Wikipedia page about this book: https://en.wikipedia.org/wiki/Hidden_World_(novel) Later edition published with title: Hidden World. Greg Weeks, Mary Meehan and the Online Distributed Proofreading Team at http://www.pgdp.net "In Caverns Below" by Stanton A. Coblentz is a science fiction novel written in the early 20th century. The narrative centers around mining engineers Frank Comstock and Philip Clay, who, after being presumed dead in a mine disaster, awaken in an astonishing underground world filled with unexpected perils and wonders. The story delves into their harrowing experiences as they navigate this hidden realm, encountering strange occurrences and civilizations that challenge their understanding of life beneath the earth. The opening of the novel introduces Frank Comstock as he recalls the catastrophic cave-in that led to his and Clay's presumed demise. As they recover from the chaos, they realize they survived by falling into a cavern that leads them into a mysterious world. Struggling against both injury and the unknown, the two men begin to explore this subterranean landscape, where they are soon confronted by strange lights, unusual sounds, and even signs of advanced civilizations that exist within the depths. This sets the stage for a gripping adventure that promises a blend of exploration, danger, and the potential for uncovering humanity's forgotten past. (This is an automatically generated summary.) Reading ease score: 69.0 (8th & 9th grade). Neither easy nor difficult to read. en Science fiction Earthquakes -- Fiction Nevada -- Fiction Imaginary places -- Fiction Earth (Planet) -- Internal structure -- Fiction Imaginary societies -- Fiction PS Text Category: Science-Fiction & Fantasy Category: Adventure 420584 2025-06-26T10:23:51.822147 text/html 400394 2024-10-18T17:20:32 text/html 1030281 2025-06-26T10:23:56.603156 application/epub+zip 1036380 2025-06-26T10:23:52.546088 application/epub+zip 235724 2025-06-26T10:23:52.164099 application/epub+zip 1102929 2025-06-26T10:24:00.159544 application/x-mobipocket-ebook 1071714 2025-06-26T10:23:56.257563 application/x-mobipocket-ebook 348016 2022-09-30T04:45:45.671393 application/x-mobipocket-ebook 408836 2025-06-26T10:23:51.301129 text/plain; charset=us-ascii 389021 2024-10-18T17:20:32 text/plain; charset=us-ascii 18447 2025-06-26T10:24:00.294559 application/rdf+xml 26854 2025-06-26T10:23:52.269099 image/jpeg 4558 2025-06-26T10:23:52.217088 image/jpeg 981604 2025-06-26T10:23:51.880114 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog en.wikipedia en.wikipedia