Arachnoi and Shadow Quest: Kill the shadows and the arachnois that inhabit this forest, and Vinia will gladly pay you for them. There's a barrow in the northreach near the Darkenwood that's also full of shadows. You can also give those to Vinia

Kiddy Quest: Give the corpses of little boys and girls from Tasur'ke to istishia the arachnoi queen. (Why would you do this?)

Heads Quest: Give the heads of decapitated Player Characters to Caligino, the Shade in the shadow crypt (too bad he's always dead, eh?)

Amulet Quest: Give the amulets from thugs you find in the sewers to Sharbrena.