First you’ll want to mix up some glue and mix it up 50/50 with water to make it runny. Then use a brush to brush on the glue around the edges and stack it up on some books so that the book doesn’t warp. I used a plastic bag to keep the glue away from the parts of the book that I wanted to keep original.
I’m not the first one to make this type of secret book. Check out hivoltage’s mp3 player book! – Link
Dowload the PDF to get the full instructionss for making your own secret compartment book! – PDF Link