The Harry series is suitable for pre-schoolers and early school-aged children and is about a young boy called Harry who lives on a farm. Each book is based on a Bible story or verse and contains a clear, yet simple gospel message. The accompanying illustrations of the whimsical countryside scenes are hand drawn by Mary Weatherup, who lives on a farm in rural Northern Ireland.

In this book Harry lives on a farm and loves to help Daddy. When one of the sheep goes missing, Harry and Daddy search for her around the farm. They meet some other animals and face many obstacles, but will they find the lost sheep? Based on the story which the Lord Jesus told in Luke 15:3-7, Harry learns the important lesson that we are all like lost sheep, but the Lord Jesus, the Good Shepherd, came from Heaven to rescue us.