A missing dwarf. We are looking for him.
Gundren was looking for his two sons and Wave Cave Space Maze with Sildar and I think one other guy before they were split up by a goblin attack. He’s been missing ever since but was found again at Cragmaw Castle being held hostage by King Groll and a drow (secretly a doppelganger). The “drow” attempted to kill him, but Finn saved his life.