http://book.klll.cc/ebooks/subject/30541.opds 2025-08-16T18:28:34Z Books about World War, 1914-1918 -- Secret service -- United States (sorted by popularity) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-16T18:28:34Z https://book.klll.cc/ebooks/subject/30541.opds?sort_order=title Sort Alphabetically by Title 2025-08-16T18:28:34Z https://book.klll.cc/ebooks/subject/30541.opds?sort_order=release_date Sort by Release Date 2025-08-16T18:28:34Z https://book.klll.cc/ebooks/55666.opds The German Spy in America John Price Jones 2025-08-16T18:28:34Z https://book.klll.cc/ebooks/74188.opds The Web : The Authorized History of the American Protective League Emerson Hough