Put me together. Discover my secret before you entrust me with yours. Simply lock away secret notes, valuable treasures or other personal items with the Book of Secrets and keep them away from prying eyes. This wonderful 3D wooden puzzle is a steampunk casket in the shape of a book with a combination lock, a secret compartment, a multi-step opening process and a fantastic mechanism. You open your book of secrets by entering a three-digit combination into the spine of the book to unlock the secret key. Insert the key into the special slot and turn it anti-clockwise to activate the opening mechanism. Then turn the cogwheels anti-clockwise and finally open the book. Several windows on the box will show you whether you have carried out the individual steps correctly. This mechanical 3D secret box with its complex opening sequence is full of mysteries and is both a fun way to store things and a fun game where you can challenge friends and family to solve the riddles of the Book of Secrets.