Publisher's Synopsis
Explains how to write and decipher space codes, hidden word codes, and alphabet codes and gives formulas for invisible ink. Includes suggestions for delivering coded messages.
Paperback
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Includes delivery to the United States
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Explains how to write and decipher space codes, hidden word codes, and alphabet codes and gives formulas for invisible ink. Includes suggestions for delivering coded messages.
ISBN: | 9780590026062 |
Publisher: | Scholastic Paperbacks (Mm) |
Imprint: | Scholastic Paperbacks (Mm) |
Language: | English |
Number of pages: | 10 |
Weight: | -1g |