The Warlord and the Mortal

A medevial Fantasy book following the events of the demon Invasion of Miradia a world of elves fairies dragons giants humans and more but now the demons and their warlord no one knows his true name they just call him the conqueror have come to the world and they bring war and death with them. The orcs trolls most of the giants and dragons have sided with him while the other species are putting their differences aside. Powerful masks are worn by commanders of the invaders these masks grant great power. The defending armies leaders have agreed if they have any chance at beating the conqueror they need the masks. Will they succed stay and find out