In the process of discussing with her husband the plot of her latest novel, mystery writer Lady Wimsey finds the solution to a real-life murder. The novel is an unfinished 1930s manuscript by British writer Sayers, completed by Walsh on the basis of the outline.
Although Grandma has seen many wonderful sights around the world, none compare to the wonder of her bouncy, growing, "heaven-and-earthly" granddaughter Madeleine.