School Library Journal: VERDICT An excellent book with loads of cross-genre and cross-format appeal. Highly recommended. May and Libby created Princess X on the day they met in fifth grade. That was before Libby and her mother died in a car crash. Now May is 16 and looking at another long, lonely summer in Seattle when she spots a Princess X sticker on the corner of a store window. Suddenly she starts seeing Princess X everywhere, including in a webcomic at IAmPrincessX.com, where the princess story is eerily similar to Libby’s. This means that the only person who could have created the comic is May’s best friend – Libby – who must still be alive. In her YA debut, Priest offers a tantalizing, page-turner of a mystery that spans real locations in Seattle and dark pockets of the Internet. May is an assertive, capable heroine who finds help from likable and well-realized characters along the way in this fresh and authentic story. Even when the action moves online, Priest keeps the story exciting and approachable without ever resorting to technical jargon. Accompanying illustrations by Ciesemier bring the story found in the webcomic to life and integrate beautifully with May’s search for Libby in this utterly satisfying read.