Longsword Quest

Name: Longsword Quest.
Location: Dusalk's Troll Clan Cave
Reward: Longsword, Mirror, 3 Blank Rune, Wooden Doll, Wedding Ring, 76 gp, Watch.
Monsters: Snake, Troll, Wasp, Minotaur Archer, Minotaur Mage.

First, reach the Troll cave (southeast of Dwarven Bridge), open the hole with a shovel and descend. Then follow the path marked on the map below and expect a Minotaur Mage and Minotaur Archer in the room at the end.