I am struggling with the final step with this. I have made 3 assumptions which seem logical to me. The extra letters give a transposition code word and method and that the ciphered text has, coincidentally, the same number of letters as the summation of the code word. Am I barking up the wrong tree as all the online tools for deciphering what I have, whether it be RR,RC,CC or CR give me nothing but garbage. If that gives too much away I shall ask Norah to remove it.