http://book.klll.cc/ebooks/subject/25003.opds?sort_order=downloads 2025-09-20T21:21:35Z Books about Code and cipher stories (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 2025-09-20T21:21:35Z https://book.klll.cc/ebooks/subject/25003.opds?sort_order=title Sort Alphabetically by Title 2025-09-20T21:21:35Z https://book.klll.cc/ebooks/subject/25003.opds?sort_order=release_date Sort by Release Date 2025-09-20T21:21:35Z https://book.klll.cc/ebooks/42455.opds The Mystery of the Sea Bram Stoker 2025-09-20T21:21:35Z https://book.klll.cc/ebooks/69204.opds The white cipher Henry Leverage