On a location with numerous webs, and at least one big spider, there is a something inside a cocoon. It is humanoid in shape, still moving. If the heroes free it (not before they kill or drive away the spiders), they meet a ... zombie!
The poor zombie wandered the dungeon alone, and tried to kill a big living creature (= a spider). The spider used the usual treatment, even if this victim did not look tasty. The zombie can be easily killed as any other zombie. It got but several doses of spider-poison, so can be something worth if it is extracted. You can mention to a druid or ranger the fact the spider had no poison anymore.
On route from Geli to Nekrass the characters meet a peasant boy on the road. He's wandering in the direction from which they've just come. If this seems a little bit incongruous, they may wish to ask him a few questions. He's perfectly willing to talk: he's called Lamish and he's run away because he knows he is the heir to the throne of Geli and his parents didn't believe him. How far is his home? About five weeks walk from here. How much has he eaten? Nothing. Has he drunk? Only from the filthy roadside ditches. In short, it's a wonder he is still alive. And yet he seems perfectly healthy.
Is he a thief, waiting for travellers to trick? Is he lying because there's something more sinister under all of this? Is he telling the truth? And anyway, what should the characters do? Do you take him to Geli? Do you try to find his parents? Or leave him to make his own way?