| Title | : | Codes \u0026 Ciphers |
| Author | : | |
| Rating | : | |
| ISBN | : | 0760728976 |
| ISBN-10 | : | 9780760728970 |
| Language | : | English |
| Format Type | : | Hardcover |
| Number of Pages | : | 122 |
| Publication | : | First published November 11, 1999 |
Doubly Difficult Challenge To Tax Any Einstein!
Work out what the codes and ciphers in collection are saying before solving the twist to every puzzle.
Carefully constructed to challenge beginner and expert cryptologist alike, this set of puzzles will reveal all if you have determination and a sense of humor.
