What you will need.
1)a thick book
you will use the ruler and pen to mark
out a spot to cut out for your safe.
you need to start cutting out the pages one by one it took me 15 to 20 minutes to cut out what i needed.
once you get it to where you need it you can start to glueing it together
and cleaning it up a bit so it will look nicer.
now you are done you can store all of your valuables with out any one knowing where they are.