this is the hardest cipher so far im so stumped by part B this is insane i think ive worked out the type of cipher but i have zero clue on how to decode that cipher without the key 🙁 is there a small hint i could have maybe please?
[There is, indeed there is a series of them and we will publish them on the schedule shown at the top of this thread! In the meantime try to enjoy your befuddlement! It will make the solve much sweeter. Best of luck, Harry]