You know, I've been reading Dean Koontz's "77 Shadow Street," and this is sort of how I imagine the creepy side of the estate in it... very eerie, the kind of place where you would breathe out your mouth for fear of making a sound. It also seems sort of.... I don't know, sacred, almost. Like that fear mixes with a touch of reverence.
In short, I'd say you captured the personality of this crypt QUITE well.