At Windhowl, search for an NPC called A Wounded Guard (located at the first house at the left as you enter the town). Speak to him and he will tell you that a Troll wounded him. He will also ask you to kill the Troll. Go to Troll's Lair (west from caves) and find Mhorgwolth the troll. Kill him (-2 karma) and return to Windhowl . Say “Troll” to the Wounded Guard and he will reward you with a Shield of Windhowl.

NPCs involved: A Wounded Guard

Mini-Bosses involved: Mhorgwloth the Troll

Quest Reward Synopsis: Shield of Windhowl