One way of getting to Pupland is from the Port of Scorn. Once in the Port of Scorn, head west across the bridge to the red dragon. Use the dragon, just like you would a ship, to transport you to Pupland.
Pupland consists of "... a zillion minor quests. There is no real distinction between quests; pupland is (mostly) one large puzzle, with the various quests all mixed together. So it's not a straightforward "enter this house, solve the puzzles and get the item"; instead you keep running around, getting little pieces of information from various places, solving minor quests as you encounter them."
This section is unexplored.