Mister Rogers plays with a toy boat. Trolley shows how it will be the waves for the opera. In the Neighborhood of Make-Believe, Lady Aberlin gives Trolley its costume. Corney thinks he sees waves; he hadn’t heard about the opera. He’d like to be in it. Grandpere gives Reardon a boat in return for a song. Because there are twelve people in the opera, they will need a lot of room for the production. They decide to use the whole neighborhood. Grandpere is handling decorations.