“ 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.”
“ What to export or import....
Fabric: wool, linnen, silk...
Wood: raw-material, furniture
Stone
Marble
Coal
Metals: iron, gold, silver, copper...
Wine, beer, mead, spirits...
Animals: horses, sheep, swine, cows...
Weapons
Armour
Slaves
Salt, spices
Cheese
Grains
Coloring-powder (for fabric, ink...)
Yarn
Raw-material to make fabric: unprocessed wool, linnen, silk...
Leather
Glass: Windows, figurines, glasses, raw-material...
Shoes, clothes
Tobacco
Medicines
Poison
Coins
Pottery
Musical instruments
Tea (not sure about my spelling here, but I mean the hot drink Englishmen drink instead of coffee!)
Gem-stones: diamonds...
Dried meat
Dried fish
Dried fruits
Flour
Chocolate”