Kill 'em With Sleep Deprivation

It's a little known fact that dwarves, particularly of the Dark Iron variety, need rest! Lots of rest! Now I ask you; How can they sleep without pillows? Exactly, ‹name›, they can't. This is why you must steal their pillows. Once you've finished your cushion-thievery, talk with Taskmaster Scrange. He's a bit deeper in the cave, working on a covert project with Hansel.