Ancanus said that the Reians will soon attack Tiamat's Fortress. He asked you to go to the fortress and assist the Reians. When you killed the opponents in the fortress, you met Bahasha the soothsayer. He said that Brigade General Tahabata could ruin everything, and that you must kill him in order to be successful. You then eliminated Tahabata and conquered Tiamat's Fortress. However, you were unable to the find entrance to Tiamat's Shelter. Suddenly Garnon appeared and said that someone had informed her of the entrance to the shelter. Kahrun said he wished to advance immediately and that you should make haste to take part in the battle.