Mister Rogers opens a series of hidden boxes, then builds with them. He and Mr. McFeely visit an underground home. Mister Rogers talks about homes being different because people are different. In the Neighborhood of Make-Believe, Mr. McFeely is trying to deliver a box of sand. Because the address is unclear, he keeps trying different individuals. When he asks X the Owl about the sand, Henrietta shows him a sandcastle she has made, revealing a talent no one knew she had. Mr. McFeely finally gets the sand delivered to Charles Aber in Westwood. Charles is secretly constructing a sand table for all the neighbors. Mrs. Frogg offers to contribute some jelly molds from her kitchen. Lady Aberlin tells Mr. Aber that she has a secret that she doesn’t want to tell anyone yet.