Kulbak Prison: Catacombs

You follow a crumbling stone staircase down to an old prisoner’s tomb. Gundur follows you, wiping the dust from the plaques that line the walls and reading off the names of the dead. - Crack in Kulbak (RPA-ADV5)

You find the crypt of Khathandor:

• Let him rest.
• Awaken the spirit of Khathandor and steal his horn, receiving his curse.