Have you checked up on the north wall? You need to cross a coupla rooftops to get to the top of the north wall, but there's usually 5 or 6 Morden up there. On the way to them you should pass the scholar guy who gives you the "Lore of Aranna" quest, and a Half Giant who's involved in the "Lenali's Sorrow" quest if you have an Agallan Relic to trade for his Harpy Feathers
From cradle to coffin... Shall my wickedness... Be your passion