The people in your great walled city have begun to grow ill. The green muck they retch up stains the streets and makes them stink. As they all fall ill, you remain unaffected... for now. Eventually, you have to venture outside. On your way out of the city to find an uninfected trader, you see something atop the nearby guard tower. Curiosity gets the better of you as you scale it. At the top, taking up most of it, is Peryite. He's in his usual form of a green dragon. He picks his head up as you approach.
Peryite: "Ah, mortal, I see you have not joined my afflicted. You will soon, worry not." He lays his head back down, his expression is almost sad. He wouldn't tell a lowly mortal, but the other Princes had kicked him out of his plane temporarily. Well, Mehrunes Dagon did, but th others didn't stop him.