I seem to have gotten myself softlocked(?) after making it past the maze, I got the suitcase from the left side, the salesman is gone and I can't leave. The other fellow seems to be much too busy to help with my predicament.
Here's a hint, try check what you got from the suitcase.
I got a rubber duck (4), they can not be used. So unless I missed some other way of using items I am very lost.
Have you checked the walls yet?
You actually got five ducks. It is easy to miss it though if your inventory is filled up already.