This is sold as a premium product for the retail price of $60. The big gimmick for the book is an included Kimoyo bead with a UV light inside that’s used to decode notes and messages left by Shuri. The bead itself is made of plastic and can be somewhat difficult to use because of its small size. The light is activated with a small button that has to be held down instead of working on a toggle. It makes reading notes and other messages more of a pain than it should be, but the notes do add a layer of context to what’s on the page.