Quicklings
Quicklings are small, but very quick creatures. Time after time the start a raid for New Arralon. Because of their quickness they rush past the gate guard, ran into the town and grab everything not securely fixed somewhere and leave as fast as they have come.
Many warriors tried to find their hideout, and some indeed did. They reported that their hideout is near Wafel’s Wayhouse, in the forest to the east.
Maybe you are strong enough to cleanse the world from these bothersome creatures …