Cardboard inside BB shell

I like the idea about a message from the past. I too have written under stickers and also inserted rolled business cards into my bikes many orifices as an attempt to prove ownership in the event it gets stolen and (hopefully) recovered.

A friend of mine told me that his daughter had found a hole in the ground on Primrose Hill - with a little wooden lid on the top - it's very hidden and very very hard to find - inside the hole (around a couple of feet deep) was a tube, and inside that tube was a smaller box - and inside that box was a small book and a pencil.

As I live around the corner from the hill he gave me directions, it's really hard to find, if I remember right it's so many steps from a certain tree going North, then so many steps towards another tree and so on . . .

Anyhow, one night, I managed to find it, it was very very strange, the book was full of the names of people who had found the box, a few business cards and a few weird trinkets, I put my name in the book and stuck it all back.

I had almost forgot about it completely until your post reminded me.