Fafnyr asked me to search for signs of Bjorick and Gar. He suggested that I look in spider cocoons east of the manor house. Hints: Destroy Spider Cocoons.
Search for Gar in the Goblin Cave
Bjorick told me he saw the Goblins dragging Gar to the cave on the beach. I may find him there, if he still lives.
Talk to Gar Deeper in the Cave
Gar plans to kill the Goblin Warlord. I should find him deeper in the cave and offer my help.
Kill Shadowsilk Warlord
When I found Gar, he asked me to slay the Shadowsilk Warlord. It's inside a cave at the bottom of a waterfall east of Hrogar's Hold.
Talk to Hrogar
Now that I've saved Gar, killed the Goblin Warlord and the spider queen, I should return to Hrogar at the manor house and report the good news.
— game journal