"Though it would be much more difficult to access for anyone who couldn't breathe underwater," Daud muses. Not impossible, though. There are objects that allow one to breathe underwater -- one of them is in his own packs, even -- so it's hardly unbelievable that someone would be willing to do that. More importantly...

"Although with the shrine preserved, I suppose it wasn't possible to tell how long it had been there." Could be that those worshippers are as dead as the dragon they revered. "The dragons don't appear to command the respect they used to, these days."