Project Gutenberg 2007-02-17 Public domain in the USA. 153 Finlay, Roger T. (Roger Thompson) 1860 Finlay, Roger Thompson The Wonder Island Boys: The Mysteries of the Caverns E-text prepared by Joe Longo, Mary Meehan, and the Project Gutenberg Online Distributed Proofreading Team "The Wonder Island Boys: The Mysteries of the Caverns" by Roger T. Finlay is a novel likely written in the early 20th century. The story revolves around the adventures of George Mayfield and Harry Crandall, along with their mentor, the Professor, as they navigate life on an uncharted island after being shipwrecked. The trio embarks on various explorations, facing both the mysteries of the island and the challenges of survival while discovering remnants of previous inhabitants. The opening portion sets the stage for the boys’ predicament, introducing their concern over the mysterious disappearance of their yaks, which leads to an exploration of the island's various enigmas. As they search for the lost team, they reflect on their prior adventures, including the development of tools and machinery from the island’s resources. The narrative hints at deeper mysteries, including signs of other civilizations and strange occurrences that continually draw their curiosity, establishing a sense of adventure and discovery that will likely propel the story forward. (This is an automatically generated summary.) Reading ease score: 70.9 (7th grade). Fairly easy to read. en Islands -- Juvenile fiction Castaways -- Juvenile fiction PZ Text Children's Book Series Category: Children & Young Adult Reading Category: Adventure Category: Novels 387959 2025-07-08T14:01:51.990900 text/html 388453 2007-02-17T15:54:10 text/html 1505620 2025-07-08T14:02:02.931869 application/epub+zip 1509204 2025-07-08T14:01:56.565886 application/epub+zip 211068 2025-07-08T14:01:54.300877 application/epub+zip 1601524 2025-07-08T14:02:07.034819 application/x-mobipocket-ebook 1573727 2025-07-08T14:02:01.178841 application/x-mobipocket-ebook 361196 2022-09-09T15:34:15.826874 application/x-mobipocket-ebook 359531 2025-07-08T14:01:51.037885 text/plain; charset=us-ascii 359284 2021-01-01T18:44:03 text/plain; charset=us-ascii 359292 2021-01-01T18:44:03 text/plain; charset=us-ascii 21101 2025-07-08T14:02:07.163824 application/rdf+xml 19481 2025-07-08T14:01:54.808885 image/jpeg 4229 2025-07-08T14:01:54.553868 image/jpeg 132038 2021-01-01T18:44:03 application/octet-stream application/zip 1376186 2021-01-01T18:44:03 application/octet-stream application/zip 132037 2021-01-01T18:44:03 application/octet-stream application/zip 1460328 2025-07-08T14:01:52.100892 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