Vanquish the Seck

Vanquish the Seck is a main quest in the Chapter IX of .
The final quest given to you from King Konreid after you free him is to destroy the remaining Seck before the will be able to free Gom, which will open in chapter 8, but will be transferred to chapter 9 when leaving the Chamber of Stars. 
You need to go through a gauntlet with evil spirits, lava-flooded dungeons, mysterious ruins and strange bone bridges. In the end, the hero needs to kill the leader of the Seck, who is at the same time the personification of the main evil in the game, Gom the Seck God. 
You should know what to do now, defeating Gom will complete the final quest and win the game!