This is a hint for the game Raving Manor. Please be warned,the following hint gives information that could be considered a spoiler. For this reason, we would like to caution you about reading the hint unless you are certain that you want to proceed with knowing the information contained herein.
So, you have come to the conclusion that you need to get the safe open. Well, I guess it can be said that the code to get it open is a secret. Aha!
There is a wall saying that states "Bn htrgtih pgt ztei xc bn dlc ldgas". Decoded (okay, so I gave you one), this says, "My secrets are kept in my own world". Now, where in the game have you found a something that could be called a world? If you have not found the hammer yet, then chances are you have not found anything that could be described this way (trust me).
If you have found something that could be described as a world, then apparently the secret is kept inside. You can examine it, but I would bet that there doesn't appear to be any openings. So, what is an adventurer to do? Did I ask you earlier if you had found something handy to swing around and smash things?