Creator13
Okay, so, I will admit that by the time I got to the chest, it had been a while since I learned about the flame lock, and I did the castle last. However, that being said...
So, would you like to guess how long I spent trying to solve that lock using the letters
B for Blue,
O for Orange, and
P for Purple? Can you guess? Like an hour! I thought I must have made a mistake, so you know what I did? I went back to the three locations again to double check, and you know what I found? A
Purple flame! So, I went back to the chest and tried again. Nope, no luck! I beseech thee, fix this text! Save others from my folly!