Harry Potter fans will love this replica Monster Book of Monsters from the Harry Potter movies. Use the book as a keep safe box to store your most precious possessions.Only you can open the book through knowing the special password. Electronic sensors in the spine allow you to set and re-set any combination of 4 strokes up and down. Intruders will be kept at bay by the Monster Book?s ghastly growls and snarling teeth to ensure they won?t be back in a hurry!