Sam's Old Backpack Quest/Spoiler

Sam, the blacksmith of Thais, used to be an avid explorer. Because of this, he lost his backpack in Ulderek's Rock due to an attack of orcs. It's believed his backpack was stolen by an Orc. If you find it, he'll tell his friend in Kazordoon to give you a gift: a Dwarven Armor. It's a rare drop by any Orc in the Orc Fort; The backpack is red embroiding the message "Property of Sam, Thais." You can loot the backpack out of any type of orc in Ulderek's Rock. After talking to Sam and Kroox, you must go to the crusader helmet quest. At the GSs floor you'll find a way to south. Go there. After killing some GSs you'll find a locked door with a chest inside. Open the door and then the chest. The dwarven armor is inside.

Transcripts
Player: Hi Sam: Greetings, Player. What do you want? Player: Old Backpack Sam: Thank you very much! This brings back good old memories! Please, as a reward, travel to Kazordoon and ask my old friend Kroox to provide you a special dwarven armor. ... Sam: I will mail him about you immediately. Just tell him, his old buddy sam is sending you.

Player: Hi Kroox: Welcome to Kroox Quality Armor, Player! Player: Sam send me Kroox: Oh, so its you, he wrote me about? Sadly I have no dwarven armor in stock. But I give you the permission to retrive one from the mines. ... Kroox: The problem is, some giant spiders made the tunnels where the storage is their new home. Good luck.