Board Thread:Warhammer 40k General Discussion/@comment-98.65.214.174-20140314221249/@comment-99.239.8.64-20140315081329

I myself have wondered the same thing. That particular event as a whole sounds fascinating and I wish they would flesh it out. What race was it? How did it control so many systems? What forces were finally brought to bear? How messy was the aftermath in detail. But the question cannot be answered as it has not actually been written about in detail by GW.