Board Thread:New information about the show/@comment-6770938-20131208105513/@comment-1114229-20140711132745

That presumes that someone didn't cheat and make a map by printing the images on the keys. If the key portion of each object is important, then destroying a key may be significant. (Out-of-universe, that also makes the plot go south.) Can something locked in the thirteenth century withstand a twenty-first century brute-force attack?