The Killing Fields

Look at what has happened to this place! These lands were once occupied by good farm folk. But the damned thieves have driven them all off. Not me, though! But it seems some Harvest Watchers have taken over the fields.$b$bIf you're up for the work, I'd like you to go out and kill twenty of them. Come back when you're done for your pay. If you finish up with the ones in my field, clear them from the neighboring fields as well.