Abby is puzzled when she discovers many of her favorite books are missing from the library.  She checks the shelf, the cart of books waiting to be shelved, and the online catalog.  The books should be there!  Then she sees a suspicious man with a briefcase, with one of the books inside, racing out of the library.  She jumps to conclusions and enlists the Book Bunch to help her solve the mystery.  This simple story contains several small side issues of school bullies, family dynamics, and library procedures.  Many black and white drawings by Amanda Chronister complement the action.