Posted: Sep 11, 2015 1:22 pm
DarthHelmet86 wrote:Or the accretion of material blocking the passages.
Where would that material come from? There are presumably no stalactites or stalagmites blocking the cave, and no mention of wind-blown material at the back of the cave, nor mechanism for a previous through route for air to allow such a wind.
EDIT: Presumably, the "dragon's back" isn't a hugeb pile of bat-droppings, otherwise this would surely have been mentioned.