Once they had gone back to Middle-earth, Morgoth undid his false allegiance with Ungoliant and denied her the possession of the stolen Silmarils, in spite of what he had initially vowed to convince her to partake in the assault on the Blessed Realm. The gruesome Maia went then berserk and, in extreme wrath and unceasing hunger, trapped the Dark Lord into her black webs and was about to devour him completely, if not for the intervention of the Balrogs, headed out of the Iron Fortress for the rescuing of their evil master.