Not sure if this has been mentioned already, but other dwarves must have already known of the existence of the secret conpartment via their Stonecunning ability. Wouldn't be surprising if other clerics of Thor already knew of it.
Originally Posted by MERC_1
I find it very amusing that a very theoretical discussion of how to Optimize Bardic Music, turns into a discussion on how much worms you can eat in 7 minutes.