I've always thought it kind of silly that once you've cured corprus and become a sworn enemy of the Sixth House, that the most they'll try to go after you is sending ash zombies in your direction. For an all-powerful cult with minions everywhere, the Sixth House is extremely lazy.

Hence, this idea, which aims to put the player in a difficult, challenging position from which he/she must escape.

The premise is this. Three days after you receive the Moon-and-Star Ring, you will be captured by the Sixth House the next time you sleep, and will wake up in a strange dream, where Dagoth Ur or Dagoth Aranys (I haven't decided yet) will speak with you, and taunt you with some illusions. You will emerge from the dream imprisoned in the Sixth House base of Mamaea, from which you must escape with Hassour Zainsubaini, killing Dagoth Aranys for the key to leave (without the key, it will be impossible to exit OR enter Mamaea through normal or magical means). Although you will have your equipment, you will be severely cursed until you manage to slay Aranys and escape Mamaea (not able to sleep, drained health/fatigue, etc.). The mod is not intended to be too complex in terms of story or intricacy, but would make the player feel like the Sixth House is becoming increasingly aggressive toward the player after he begins to show the world that he is the Nerevarine. As a bit of an extra treat, it would greatly expand upon the characters of Dagoth Aranys and Zula, the Dreamer prophet in Mamaea,

Is this something people would be interested in?

Mamaea already has built-in rewards (Fang of Hanyekemett and Dagoth Aranys' Soul Ring). This would just make the experience of getting them more interesting