Live One,
Have you come to play my game? A prize could be yours, all you must do is follow each clue and summon a daedra to open the way; fail and you'll pay!
What is the prize you ask? Patience young one, a Telvanni lord must always take the long view. In time, if you don't die, you'll learn of your prize!
Now I'm going to asking you to summon a creature on the nearby platform, however it wouldn't be much fun if I told you what creature it was out right, so instead I'm going to give you a hint. We'll start easy, for the sake of charity. Bring forth the most loyal servant of the Scourge of Mournhold. There, that should be enough for you to figure it out.
-Llevran Vaerin