Warden tells you, "There's a long standing dungeon near the town of Glendon Wood. This dungeon is overrun by creatures that were once contained in its cells."
Warden tells you, "This will be the greatest dungeoneering challange you've faced yet. You'll need to find creatures that hold the keys or lockpick the doors yourself."
Warden tells you, "Fight your way through the dungeon and find the Oversized Banderling Ogre. Kill it and recover its Platemail Hauberk."
Warden tells you, "The portal behind me will take you to Glendon Wood outside the dungeon. Find the Hauberk in the dungeon and return to me with it."