Continuing further into the dungeon, the party comes across three demons defending (guarding?) a dwarf. The dwarf goes invisible, and one demon attacks him. Rationalizing that if the demons want him dead, then the party wants him alive, the party switches to protecting him. Two more demons join in the melee, and a fully decked out evil dwarf, the brother of the first one, mythic badass, and commander of the citadel, joins in as well, summoning another demon. The party manages to defeat them all, with the dwarf still alive at the end of it all.
With the defeat of the commander, the remaining demons flee. The surviving dwarf tells of the forge in the keep, that has been corrupted and used to fabricate evil gear. The artifact, the Sword of Valor, still resides in the keep, protected by the final guardian, a shadow demon.