Speak to Captain "Lefty" Lugsail above the Stormbreaker in Valiance Keep.
This altar bears all the markings of the Cult of the Damned. It appears fanatics from the mainland have made it into Northrend. It might be prudent to notify the captain of the ship.
Perhaps he is to be found above deck.
You will also receive:
- 10,050 experience
- 60 (if completed at level 90)
- 75 reputation with Valiance Expedition