左边壁画的密码破译后为：
Is it said,long ago,after the cursed one created the beast of the night.The first one created the embodiment of the day,the great one of the rising sun.From the top of its tower,it guards puppets and humans alike from the beast's false blessing.
不知道跟圣经有没有关系，完全搞不懂

右边壁画好像是凯撒密码，需要往前偏移三位字母

大致是这样的吧: It is said, long ago, the Cursed One created the Beast of the Night.From the top of its tower, then the depth of its cave, it mindlessy spreads the Blessing that makes one a Great One. Blessing that makes one a Great One. However, its Blessing is not as strong as the First One's or the Cursed One's.as the First One's or the Cursed One's. Keeping their body active, Puppets can easily reject the Blessing.Humans, however... It is likely that every one of them will be changed eventually.