After watching an episode of "The Flash" I was intrigued by an audible code called the tap code or knock code. Since my plans to learn Morse Code have fallen by the wayside -- this looks like a code that could be easier to learn and use.
My kids have already been intrigued with written codes such as the pigpen code, but adding this one (which can be audible or written) will be awesome!
25 15 43 45 43 31 34 51 15 43 54 34 45!
~❀~ Chelsey ~❀~