Soldato
- Joined
- 10 May 2004
- Posts
- 13,081
- Location
- Sunny Stafford
OP is about 4 years too late.
More like 20 years too late. I used to read those spy books as a teenager. One trick was to hollow out a book so that the pages still looked like normal on the outside but with an approx. 3"x3" hole cut inside. You could hide a cassette tape in there, and would also hold some nowaday phone models.