The hatred between goblins and dwarves runs deep, and Glóin wants to go on the offensive against the goblins before their threat grows too great.
'I first encountered the goblins of Goblin-town when I was with Thorin's Company on our quest to reclaim the Lonely Mountain. They had captured us and dragged us into their vile tunnels, cracking whips and singing terrible songs. We had our vengeance upon them at the Battle of Five Armies, but they simply returned to the Mountains and began gathering their strength again.
'Now with darkness rising everywhere, they have become a threat again...a threat we must hinder as quickly as possible. The entrance we were taken through was hidden, probably a postern gate. Ahead is their main gate. Enter it and wreak havoc among their number.'
The main gate into Goblin-town is to the north and east of Glóin's camp.
Glóin has instructed you to enter the main gate into Goblin-town and defeat many of the Overland Goblins near the entrance.
Glóin is at his camp, just outside the entrance of Goblin-town.
Goblin-town teemed with goblins, and the forces within were ferocious and many. You steeled your nerve and struck against them, felling many as you pressed through the entrance of their terrible kingdom. Now you should return to Glóin with news of your success.