When eight-year-old Addy befriends Cari, a new girl in her class, she has no idea where she came from or why she does some of the things she does. Cari doesn't Know or understand about computers and she has never even heard of trail mix! There is something about Cari that Addy needs to figure out. How did Cari end up with Addy's special button that her mother gave her on her birthday?
