The small town of Gundrun is unique in the Worldwound in that a semblance of normal life can be found there. Far from the heart of the Worldwound’s taint, some few refugees of lost Sarkoris try to hold on to a sad shadow of their former homeland. Within the crumbling ruins of a city sacked long ago, hardy (and perhaps foolhardy) settlers return from surrounding lands to eke out a meager existence and live in a sort of barter-town that serves as a hub for isolated villages. Even in the absence of ravening abyssal hordes, the Worldwound causes a supernatural disease called the tainted plague.
In truth, the demon hordes of the Worldwound turn their eyes primarily toward Mendev and pay little mind to their far southwestern frontier, but Gundrun and the surrounding lands are not without danger, as the demonic invasion left something behind. Local legend names this menace as “Kakuen-Taka, the Hunger that Moves,” which fireside tales describe as a swarm of tiny demonic horrors riding in “fleshy mansions,” gnawed out of the animate remains of giants, mammoths, and similar creatures. Seemingly at random, these bizarre monstrosities shamble out of the plains, often presaged by an onslaught of misshapen carrion birds riding on a sour-sweet wind, laying siege to isolated settlements and then retreating into the vastness of the haunted plains. Despite this ever-present danger, the lure of reclaiming even the tiniest portion of their ancestral home is enough to drive many with even a drop of Sarkorian blood to cling to this savage frontier.
Sources: Pathfinder Chronicles Campaign Setting