Meteor

15 years ago, on Ysgithil 7th, 666YT, a meteor struck the city of Sacena without warning. Striking the city in the Royal Quarter, less than a kilometer from Castle Thielsson itself, the meteor gouged an enormous hole into the landscape.

The Meteor
The meteor itself, while the exact composition has yet to be determined (as no one has attempted to reach the crater and survived). Yet because the crater hit close to the heart of the Sacena River, the river itself has carried evidence of the meteor downstream (to disasterous effects).

The meteor appears to be largely comprised of a mineral now dubbed delerium. The mineral seems to change colour as the oberver looks at it, resembling more of a distortion of light and air than a color. Indeed students of magic may be well familiar with this 'colour" as it has been labelled as octarine by wizards, the color of magic.

The Haze
Immediately following the fall of the meteor an octarine fog began to emanate from the crater site. Now known as delerium haze, it has now been found by researchers within the Amethyst Academy that the haze is a result of exposing delerium to water. And because of the natural climate of Sacena (it always rains in Sacena), delerium Haze now covers much of the city.

Those who find themselves in the haze find themselves to quickly lose their mental faculties, causing exhaustion and warping of normal cognitive function. And while many exposed to delerium haze die within minutes of exposure, those who survive and remain in the haze may find more horrifying effects still.

Evidence collected by adventurers and researchers seem to indicate that long term exposure to delerium haze may cause mutations of both body and mind.