Emma has loved the book since the moment she first saw it and for each of the 21 days it has been hers. But now, the library wants it back. As she puzzles and plots to find a way to keep it, Emma discovers something she likes even more than reading her favorite book. In this touching and humorous story about reading and friendship, library lovers will follow along with Emma's struggles as she learns that even though letting go is hard, it can also make room in your heart for something new.