Daphne is off to St. Rita's, an exclusive girls' boarding school. She loves to read, and is delighted to be offered the chance to interview for a librarian's assistant job immediately upon arrival--but she soon discovers that the librarian doesn't really exist. But there is a librarian's assistant, Emily Lime. And she's really a crime-solving genius, who's looking for a new assistant of her own. And booksmart Daphne is just the girl for the job, because mystery and intrigue are about to strike St. Rita's and Emily Lime is going to need all the help she can get.