A boy is puzzled by his next-door neighbour. Uncle Lin leaves when everyone goes to bed and returns home when everyone gets ready for school. Where does Uncle go? What could he be doing all night?

The Invisible People series is a tribute to the people who hold very special jobs. Their work makes our world a better place. Yet, we may not treat them like they are a part of our lives. These beautifully illustrated books offer heartfelt stories that help children appreciate these unsung heroes in our society. They remind us that these workers are people who have the same needs and dreams that we do. They demonstrate how seemingly simple acts of kindness can make a world of difference, both to the workers who receive and the child who gives.