The rise of Zelegith
The Fall of Bacoob
Boccob is the god of magic, and during the second invasion of Zelegith, he took the guise of Neritor and assisted the adventuring party that was in the dwarven citadel by helping them defeat Zelegith’s avatar. This of course did not go unnoticed by The Creator. He was striped of his godhood, and sent to the mortal realm as a normal human. He then proceeded to help the adventurer’s as he could, but during their return to Neverdusk, Zelegith killed him.
While he was no longer a god, he still had some ties to the magical lay lines of the world, and his death disrupted the flow of magic. Now every day a different circle of magic is unusuable.