A crumbling staircase leads downward from the back of the Kulbak cell block wall. It leads to an old prisoner's tomb.

Plaques line the walls. The names of the fallen Dragul soldiers are engraved on them, commemorating those buried in the catacombs.

A crypt with a stone door is near the center of the passageway.

“Here lies Khathandor. General of the Dragul Horde. Defender of the Ancient Lands. Keeper of the Mystic Horn.” - Engraving - Crack in Kulbak Prison (RPA-ADV6)

Further down the passageway, an ancient iron door stands locked to intruders. Freedom stands on the other side.

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.