Lost Mine of Phandelver
Gundren Rockseeker is one of the three Rockseeker Brothers.
He hired you in the city of Neverwinter to ship his wagonload of provisions to Barthen’s Provisions in Phandalin, a rough-and-tumble settlement a couple of days travel southeast of the city with the promise of a payment of 10 gold pieces each upon delivery. He was clearly excited about something but was very secretive. The last you’ve seen of him was when he and Sildar Hallwinter, a retired solder and sellsword, departed south ahead of you.