_ is an ascii number 95. Does that have anything to do with it I wonder?
Or maybe not... Just tried that as the encryptkey. Does nothing. Or
maybe I just did it wrong?
Tried the hex hint in the decoder with manchester bluffs. It came up with
exactly the same as the origional code. Now this has got me thinking...
Using the output of the decoder in the key gives a strange message:
Manc hes terbl uffs mancheste rblu.