The characters in "Rainbow Valley" by L.M. Montgomery return from Europe after a three-month trip that began in February for a notable medical congress in London. Their time away has been filled with experiences that have shaped their perspectives and interactions. The journey highlights both the excitement of travel and the transformation it can bring to individuals.

This period away not only serves as a backdrop for character development but also emphasizes their connection to home. The narrative explores the themes of distance, personal growth, and the inevitable changes that occur in one's life when exposed to new ideas and cultures.