With this fun challenge, brought to you in partnership with the Science Museum Group, you and your child can learn how to make a cipher wheel together and use it to send secret messages to one ...

This is a perfect chance to grab one of the stunning special edition controllers, including the newly launched Pulse Cipher, which is currently on sale for 15% off. Finished in bright red with a ...

Each time the cipher clerk keyed a letter, the right wheel moved on mechanically one place and, as explained above, from time to time the center and left wheels also moved. As each new letter (e.g ...