Does the name "Undrentide" ring a bell to you?
It did to me, which made the storyline and the adventures in (almost) completing the last of the Storm Horns quest chain one of the best experiences I've ever had in the game.
And I knocked off a couple more Epic Elite ninja missions for good measure.
>>>Seriously, if you are a past Neverwinter Nights gamer, you really, really have to complete the Storm Horns missions. You'll be glad you did.