In "Schoolhouse Mystery" by Gertrude Chandler Warner, the Alden children venture to a schoolhouse where they encounter Miss Gray. Unbeknownst to them, they are her first visitors in many years, highlighting her solitude and the significance of their visit. This emphasizes a theme of connection and the importance of human interaction.

The story unfolds as the Aldens interact with Miss Gray, revealing her character through their curiosity and kindness. Their arrival serves as a pivotal moment, introducing companionship into her isolated life and showing how small acts can bring joy and change to someone who has been alone for a long time.