With this book, children can uncover hidden messages by cracking codes and unravelling ciphers. There are symbols that stand for words, numbers that replace letters and messages that are doubly encoded. Children can make their own code book, a secret cipher slide and invisible ink.
"synopsis" may belong to another edition of this title.
With this book, children can uncover hidden messages by cracking codes and unravelling ciphers. There are symbols that stand for words, numbers that replace letters and messages that are doubly encoded. Children can make their own code book, a secret cipher slide and invisible ink.
"About this title" may belong to another edition of this title.
Seller: Good Old Books, Milwaukee, WI, U.S.A.
Paperback. Condition: Near Fine. John Pickering (illustrator). First Ed. 64 pages, includes all numbers on copyright page. Seller Inventory # 000102554