This video shows you how to create a hollow book for keeping secret things inside. To the outside world the book looks normal, but only you know what goodies you have stored inside. You will need an old hardcover book, wood glue, Razor knife, steel ruler, brush, pencil, and cup for water glue mix.

Apple's iOS 26 and iPadOS 26 updates are packed with new features, and you can try them before almost everyone else. First, check Gadget Hacks' list of supported iPhone and iPad models, then follow the step-by-step guide to install the iOS/iPadOS 26 beta — no paid developer account required.
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