The Kloreng/Vordwit Harvest Festival

The fairy mound of Kloreng and the human town of Vordwit (in the country of Ider) celebrate their harvests together with this multi-day festival.
It begins with the fairies and humans setting up carts and stalls along the path connecting their two communities, buying and selling each others' wares. Eventually, and before the snow comes, this moves to Vordwit central square as the festival continues. After a parting ceremony, the fairies head back to the mound and each community concludes the festival separately, with a feast and dancing.

Dates observed
After harvest, near the end of the fall and before the first snow comes
Places Observed
Kloreng 
Vordwit