Indoor caching?

[+Steinwälzer]

I have found a cache in a library, too. The coordinates lead you to the building, and the rest is a puzzle cache. You have to do some research inside to find numbers and letters, and finally you find the cache (a small container) inside a book! It was a special book (you couldn't read it anymore as the pages had to be cut out in the middle so that the cache fits inside), and the library of course knows about it. I needed help with one of the questions (it was about a special, very old book), and asked a woman at the information desk about it. She behaved as if she wanted to take me directly to the cache book , but I refused and found the cache alone. It was a rainy day and great fun to do! Without this caching option, I guess I would have stayed at home.