http://book.klll.cc/ebooks/author/7727.opds?sort_order=release_date 2025-08-14T17:40:06Z Books by Davidson, Halsey (sorted by release date) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-14T17:40:06Z https://book.klll.cc/ebooks/author/7727.opds?sort_order=title Sort Alphabetically by Title 2025-08-14T17:40:06Z https://book.klll.cc/ebooks/author/7727.opds?sort_order=downloads Sort by Popularity 2025-08-14T17:40:06Z https://book.klll.cc/ebooks/72723.opds Navy boys to the rescue : or, Answering the wireless call for help Halsey Davidson 2025-08-14T17:40:06Z https://book.klll.cc/ebooks/17967.opds Navy boys behind the big guns : or, Sinking the German U-boats Halsey Davidson