"A disagreement with Ungoliant led to her attacking him, and Morgoth gave out a great cry that roused the Balrogs from their slumber. In a tempest of fire, the Balrogs drove Ungoliant away and prepared to pursue her. However, they were halted by Morgoth and returned to Angband, which shortly thereafter was constructed anew."

The most exciting and riddled filled bit of information in all the series.