In a nearby town villagers tell tales of adventurers being driven mad by an unknown force within the woods…
When a local farmer discovers something at the bottom of his new well, the fate of the land will hang in the balance.
During their travels through a dense wooded area the high pitched sound of a scream tears through the peacefulness of the forest.
This mountain chain was once vast and impenetrable, but had the misfortune to named in the binding spell of a mighty demonic(godly?) being, namely that when the Great Mountains are forgotten, then shall it be free.
As population increases, animal souls are promoted to human before they are spiritually advanced enough in terms of impulse control, etc.: this shouldn't have happened, but karmic progression is automatic, after all--it's a force of nature. But the 'animalization' of humankind bodes ill for civilization.
No doubt the same goes for elves, dwarves, and so on.