Get this wagon to Phandalin

In the city of Neverwinter, a dwarf named Gundren Rockseeker asked you to bring a wagonload of provisions to the rough-and-tumble settlement of Phandalin , a couple of days' travel southeast of the city.  Gundren was clearly excited and more than a little secretive about his reasons for the trip, saying only that he and his brothers had found "something big," and that he'd pay you 10 gold piece for each escorting his supplies to Barthen's Provisions, a trading post in Phandalin.  He then set out ahead of you on horse, along with a warrior escort named Sildar Hallwinter