Found it in Almere. The book is indeed full, which is probably why the owner wants it back. I'm unhappy though, because I would have loved to place a picture of my 4-weeks old son in there!
If I bring it to Hoorn, can my son be the first picture in the new book? ;)
I'll keep the TB until I get a response from the owner what to do with it (en toevallig ben ik volgende week ook nog in de buurt van Hoorn!)