Puzzles within puzzles

Mister Rogers finds a hidden object in a picture of the Neighborhood of Make-Believe. He shows what he has in his briefcase and talks about his interest in his father’s briefcase. He has a puzzle of the Neighborhood of Make-Believe. In the Neighborhood of Make-Believe, Daniel has found a toy horse in his basement. He shows Lady Aberlin how to pull a string to make the horse say, “I know.” Lady Aberlin shows the horse to the neighborhood. Corney tells Lady Aberlin that he manufactured Horse a long time ago. Daniel is worried about whether the Platypus family will return.