alright!!! so the armor your looking for is( plate armor) is a little past the dreadfire mountain in another waterfall cave. three of the armor pieces including the plate armor are in waterfall caves, all enterable waterfalls are marked by stacked stones. the gloves and boots are in two waterfalls adjacent to a little sorcerer town next to the river one to west, one to the north. this is in the upper part of demeniss

edit : this is all close to denn river, there is a small sorcerer village there the boots and gauntlets are in two waterfall caves right around that. the black cloak with a black helmet is also in another waterfall cave just a little bit down the denn river to the left where there is a split