Postcard conversations

So, when you walk up the stairs to my boyfriends flat (4th floor), there are sometimes pictures on the wall. And I don't mean cheap prints of whatever, but it's actual paintings, like acrylics on canvas. They seem to be from one person in the house and after a few weeks they usually change. Some of the pictures are abstract, some are raising questions or criticise something. I usually enjoy these pictures and like them or find them interesting. Maybe they're not something I'd hang up in my room or flat, but it's always fun when there is a new one.

Now, a while ago the pictures where gone and there were no replacements. This happens sometimes, usually after a short while at least one new one is up (usually there are between 1-3 pictures). This time there was a long pause. Maybe even a few months, I am not sure. Well, a few weeks ago a new picture showed up, finally.

After a few days I managed to write a postcard saying "Yay! There is art again in the stairwell! Thanks!" and put it behind the picture. First not visibly, behind the picture, later Thomas recommended I put it under a corner of the picture, so the artist will see it before taking down the picture again. Well, the postcard was gone quickly, after I changed it.
A short time later there was a new postcard under the same corner, saying: "Thank you for the thank you! :-)"
I took it and was happy :)

This was 2-3 weeks ago.
Tonight as we came home, there was a new postcard and curious as I am, I had to take a look at it. It said:
"Do you want to see more?
o yes
o no
o not sure"

Heh :) I picked yes ;) and wrote my email adress behind it and put the card back under the corner.
As I went home today, the card was gone - and now I'm curiously waiting, what will follow!
I guess the artist doesn't know I'm not living in the same house as s/he is ;)