1. In the large floor dungeon, kill one NPC in the first room (you can leave both there, but just makes it more difficult).
2. Position the second npc within the square walls, to where he cannot reach you.
http://imageshack.us/photo/my-images/23/dungglitch1.png/
3. This is the actual "bug" part. You need to run to the middle door, where you unlock the other door and click on it. If the zombie was not trapped, the server would tell you that you need to kill all the NPCs in the room to continue through the door.
http://imageshack.us/photo/my-images/254/dungglitch2.png/
4. Finish the dungeon like normal, and complete the dungeon (like normal).
5. Another bug, it will take you to floor 1! where you can then click teleport to home, and go straight to the ladder and restart the dungeon.
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