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The Valley of Fear Annotated Sir Arthur Conan Doyle
The Valley of Fear Annotated
Sir Arthur Conan Doyle
Sherlock Holmes receives a cipher message from Fred Porlock, a pseudonymous agent of Professor Moriarty. After Porlock sends the message, however, he changes his mind for fear of Moriarty's discovering that he is a traitor. He decides not to send the key to the cipher, but he sends Holmes a note telling of this decision. From the cipher message and the second note, Holmes is able to deduce that it is a book cipher and that the book used for the encryption is a common book, large printed in two columns per page, and standardised. An almanac fits these conditions exactly.
| Medios de comunicación | Libros Paperback Book (Libro con tapa blanda y lomo encolado) |
| Publicado | 16 de enero de 2021 |
| ISBN13 | 9798595654432 |
| Páginas | 214 |
| Dimensiones | 140 × 216 × 11 mm · 254 g |
| Lengua | Inglés |
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