a book box
‘a book box’ presents the beloved, yet long-not-read, book mounted to the wall. Framed and exhibited, it is presented with a new functionality. Opened, the book covers the contents inside. Closing the book opens the box. The book turns into a trap door that reveals a storage area or secret compartment.
If interest in the book remains it is very easy to take the contraption of the wall and read the book, inside the box.