Just a thought, but remember you have to assign columns, and I already tried 6 😉. But perhaps you have to take everything into account, including the letter they received in their packages. But it could be any cipher on the page really. Some significance to the MOD and the text file they got reading Cryptography Isotope Philanthropy Hydrogen Ember Rebirth ( I know it is how they got Cipher, but perhaps the rest of the letter hold some significance?). Oh well, why the hell am I wasting time on this again?