Chapter forty is “Green Wine for Dreaming” was created the novel the boys are writing. The last chapter of the novel concludes Douglas’ summer, as he and Tom spot school supplies advertised for sale in a shop window. The boys reminisce about the events of summer with the aid of the labeled dandelion wine bottles, guaranteeing that they will remember this summer in their hearts. The Spaulding family stores away their porch swing for autumn, as others reverse their summer preparations as the season draws to an end.
The end of the novel echoes the beginning, with Douglas performing his waking-up act in reverse, pretending to switch the lights off and put everyone else to sleep before finally going to sleep himself, ending a very eventful and memorable summer and ending a very enjoyable book.