One snowy day an elderly woman, Sarah, watches children gathering at the bus stop. While they never seem to notice her, she notices them, especially one little boy who has no mittens. That night, Sarah knits the boy a pair of cozy mittens and places them on the blue spruce tree for him to discover. It soon becomes a game, with the children looking for new mittens on the mysterious tree every morning, and Sarah joyfully knitting new ones each night. With its touching message and delightful illustrations, adults and children will enjoy this intergenerational tale for years to come.