Scales of War
After 600 years of war known as the War of the Fey, the city of Athelannia stood alone against the formorian hordes as the last remaining eladrin city-state. So many eladrin had died that the issue of what house had the right of rule became convoluted. To settle the controversy, a meeting was called between the Council of High Mages, of which Selutaar Eris was the only remaining living member, and the various noble houses. Apparently, Selutaar Eris was assassinated at the meeting.
In the following hours, a group of eladrin tried to break into the Tower of Mages in Athelannia. There they were confronted, apparently by an angel of some sort. The angel spoke briefly and then some great magic occurred, scattering the eladrin throughout the planes and leaving the great city empty for the first time in thousands of years.