Ban'Thallow Barrow Den

The Ban'Thallow Barrow Den is a barrow den located behind Starfall Village in Winterspring. It was unused and empty before the Cataclysm; afterward, it suffered an infestation of rock borers and spiders. The bugs appeared nearly overnight, hatching from unseen eggs and swarming the tunnels. Luckily, there were no druids sleeping inside when the infestation occurred, although the den still contains blessed relics that hold great value to the people of Starfall Village.

It was all the few druids in Starfall could do to keep the bugs from spreading outside the den, so Wynd Nightchaser has hired goblins from Everlook who claim expertise in extermination: Rinno, Remma, and Marcy Curtainfire. He sends an adventurer to help the trio in a short questline starting with Exterminators at Work.

The Barrow Dens located in Winterspring in Warcraft III could have been this one.