I am also quite partial to the mystery of this submission. My addition is that when I think of a crypt it is usuall one for an entire family. Imagine a crypt intended for several generations completely devoid of bodies. Perhaps the family had some sort of special link to the underworld that made them particularly desierable as undead. Perhaps the crypt is so ancient absolutely everything has been eaten away by time. New Orleans buries their dead above ground to prevent the corpses from floating about during floods, perhaps something similar (or the reverse) happened.
Fankly I don't care for the ship idea at all. Hunting down that interesting blacksmith, however, has flavor and could serve as a way to buff your PCs that are havng problems instead of bringing them down a notch. Perhaps he is reclusive and lives on an island in the center of the bay, what is in the water? Does he only come out at night? What if his ritual is sinister and includes more than just salt water?
For a twist: The villagers knew they could not win and poisoned their grain. The bandits have taken and eaten some of it, but not before selling off a great deal to various local populations. During a time of bad harvest can the PCs manage to find and stop the shipments before they are consumed? Should they cure the bandits if they come across them dying?
So from the other comments we have established that Tymas' perspective is not the one we want the PCs to share for a number of reasons. Perhaps the players could be inside the city on some sort of espionage mission and gradually come to know or befriend him and learn that most of the city guard has been pressed into service. That would then make assaulting the city much more of a moral dilemma.
This is quite the cute short story, and it has something usable hiddien in it somewhere. The problem is I am not sure where. PCs don't typically have msising thumbs even if they are a guild member and the real interest comes from the perspective of being Tommy Thumb. I suppose he could be a 'friend' of sorts in need of help but that could easily devolve into an irksome quest or one the PCs would not take up at all.