With regard to the plot "Sleeping Mines of Elathon":
You manage to get the water wheel in the mine working which operates a pump to clear the flooded lower levels. As you explore the dank tunnels of the lower galleries, you can hear the creaking of the wheel above. You enter a low-ceilinged passage and are crawling on your backs, when the creaking stops. The water starts seeping wetly around the back of your head...
The Orcish Mustang - a semi-wild horse tamed and domesticated by orcs to serve as their mounts. Large, strong bodied, and fearless as they live among orcs. On the other hand, bad tempered, with teeth problems, sometimes have hoof problems, and agressive. In lean times, or when an animal dies, the orcs suddenly have a dearth of meat, and hide to work with.