The bad guys will always go for your safe to discover your secrets, so why not store them in plain sight with a hollowed out? Or, perhaps you need to hand off an item to one of your operatives -- use a hollow book as a dead drop, perhaps hidden amongst the stacks at a library or used book store...
This guide will show you how to build the classic secret hollow book safe. You'll also learn how to make a motion detection alarm using a Circuit Playground Express, and get a primer on the ultimate physical security app for Android -- Haven.
Materials & Tools
You'll need an old book that is no longer wanted. A great source for these can be a thrift shop or the used book store at your local library.
Hardcover books are nice to work with, but you can use a soft cover just as well. Be sure the book is thick enough to hold your items.
In hollow and seal the book, you'll need:
- Utility knife with fresh, sharp blade
- Straight edge
- Speed square
- Pencil
- Small paintbrush
- Mod Podge or white glue
- Sheet of Mylar or plastic cling wrap
- Small clamps (optional, you can stack heavy items instead)
