Hi everyone!
I’ve got a challenge for those of you that have finished 10B – my own puzzle. It’s completely unrelated to all of the official posts, and is cipher stacked a couple of times with a cipher to do with prime numbers. I’ll drop hints if necessary, but for now you guys are on your own. Good luck!
Nice idea! Could you repost with a solution and description of the cipher for Harry and the Elves to take a look before posting? Thank you, Harry