A code wheel used for writing and reading secret messages.
Download the code wheel and start writing your own spy messages. No invisible ink required!
Cyphers are messages already put into secret code. Use a code wheel to de-code these secret messages.
Mabel Opal Pear crossword puzzle and word search.
Mabel Opal Pear uses her knowledge of state capitals to break the case. Build your knowledge of state capitals with this crossword puzzle and word search.
Mabel Opal Pear's parents are always out of the USA doing secret spy stuff. Are they in one of the countries in this advanced crossword?