Code breaking! Pig Pen Cypher or Masonic code is a system of symbols for letters that means you can communicate without others knowing what you're saying - unless they can crack your code!
Have a look at the sheets attached below. There are a lot of options - the first ones are easier, and then they get harder and harder. Have a go at as many as you want to - or why don't you use the code to write some of your own messages? Come and share them on the blog and see if any of us can decode them!
I have also included a videos for you to watch and a couple of other links to make the code clearer.
Good luck code breakers!