A mysterious love letter brightens the lives of three forest animals. Appealing mixed-media illustrations made of ink, gouache, brush marker, and colored pencil combine with a timely message that one kind act can start a chain reaction of kindness. When Hedgehog, Bunny, and Squirrel stumble in turn upon a formally composed love letter, each finds their life improved: Squirrel is less anxious, Bunny spreads goodwill through helpfulness, and Hedgehog is unusually cheerful.