In this chapter, you have to defeat the boss in the SE room of the map. If you noticed, there are rooms with blue and red floors. Red tiles will turn all enemies within them to advanced Classes while the blue tiles will turn them to weaker base classes. There’s only two dragon veins here that will swap the colors of the floors and they’re located in small rooms on both sides in the middle of the map.
If you check the map’s layout, you can move your main army to the west then divide them to the two groups; one heading further west then south and the other towards the dragon vein area. It is recommended to activate only the dragon vein when you’re about to enter the boss room since all of the enemies there are advanced Classes. There are five chests in the map and an enemy near them has a chest key so you don’t need to bring more than two characters with locktouch.
Chest contents:
NW: Boots
Middle East: Arms Scroll
SW: Aurgelmir (Rank S axe)
Boss Room N: Barb Shuriken
Boss Room S: Master Seal
Head to the blue room and lure the enemies there to demote them to base Classes. After clearing the nearby enemies, you can divide your forces and send one group to the west and one to the southern room. Single reinforcements will appear from the stairs of previously cleared rooms so be careful not to get sneak attacked. Keep pushing forth and loot the chests along the way. As long as you lure and fight the enemies in blue tiles, you should have an easy time wiping them out. Head to the boss room and activate one dragon vein to change the boss room’s floor to blue, weakening every enemy in it, including the boss. Finish him off after looting all the treasures.