http://book.klll.cc/ebooks/subject/30541.opds?sort_order=title 2025-08-17T17:16:45Z Books about World War, 1914-1918 -- Secret service -- United States (sorted alphabetically) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-17T17:16:45Z https://book.klll.cc/ebooks/subject/30541.opds?sort_order=release_date Sort by Release Date 2025-08-17T17:16:45Z https://book.klll.cc/ebooks/subject/30541.opds?sort_order=downloads Sort by Popularity 2025-08-17T17:16:45Z https://book.klll.cc/ebooks/55666.opds German Spy in America John Price Jones 2025-08-17T17:16:45Z https://book.klll.cc/ebooks/74188.opds Web : The Authorized History of the American Protective League Emerson Hough