Oh, wait. That's not the dragon. That's the sandworm that ate Finn the Thief's cook Jaan somewhere on the second level.
Here's the dragon. Spotted flying not far from the Abbey and reportedly eating cattle from a nearby farm. To get a sense of scale, this beast is just the right size to squeeze down a standard 10' wide dungeon corridor.
And here's Finn the Thief and Vithujin the Elf after Vithujin picked a fight with the dragon. More info on that mess here. Fortunately, they had bought life insurance for 1,000gp a piece. I really ought to start rolling a chance that the Bishop is away on business when you need a raise dead cast.
Also of note: reports of giant spider activity between the Chamber of the Roots and the entrance to the level with the goblin village.