Operating out of Armudstadt, the notorious city of corruption and deceit and centre of the Kingdom of Dernwich, the Duchampe Society takes its name from its founding father, one Vergrin Duchampe, who lived around the 18th century. Duchampe, an Elvish merchantman - or rather, a leader and “godfather” of a great deal of lower Elvish merchantmen, was notorious for his skill at wagers.
The devil's wind. Explains why people become crazy. They are caught up in this wind which steals their sanity which in turn feeds the wind. The wind is a leftover from when the air elementals banded together in a mass army at one point to attack the True Gods. The wind is leftover of their attack route and on the anniversary of the battle the wind sweeps through causing the madness.