This book is about an intelligent dog named Nell, an incredible detective. She loved attending school with her owner on Mondays, where the children would read to her in the library. One Monday, Nell goes to school only to discover that all the books from the library have been stolen. She then starts to track down the thief with her keen sense of smell. This is a perfect book that teaches children about the joys of reading and has a more complex message on the importance of equal access to books and learning resources.