Seal of the Royal Family (2)
There are still many seals left before you go to the sanctum that will lead you to the inheritance of Zachariel. Talk to the 2nd Disciple of Gustas about the seal.
You have to unleash all seals to enter into the sanctum that will lead you to the inheritance of Zachariel. Unleash the 2nd seal that is on the middle of the way to the Broken Sanctum. Be careful of monsters' attacks.