World on the Second Breath

I called the people from that street the Invisibles. They could blend into the background, even in the middle of an empty square. One moment they'd be answering a question, and the next they'd be forgotten by the asker. They lived apart from the world, alongside us.
But then something happened that made the nickname a reality. They really did disappear; their strange, lost street was suddenly empty. Did they leave on their own, or were they taken? Is something like that even possible in Central Europe at the beginning of the twenty-first century? Did their own past catch up with them, or did our present? I didn't have the slightest clue. They were simply gone.
But they did leave something behind after all. Actually, someone.
And me, the one who decided to solve the mystery of the Invisibles.
Because sometimes, you just have to do these things. Even when you don't want to.