Lost Perth linked to a panorama photograph from the Perth Observatory in 1920, a wide shot of the city as it was on a particular day. To look over it, panning along as if it was something more than a photograph, is to step into a ghost city in black and white. The town of a century ago lives on, details trapped. I zoomed in as far as it would go and looked for people. For a long while, it seemed there were none, just long deserted stretches. And then I came to a huddle of people near the edge. It looks to me like a nun with some students – praying, talking, learning? They have no idea the moment is recorded from up on the hill. Perhaps one of the girls could still be alive, but probably not; she would have to be 110. Not far from that huddle are two figures in motion, blurs in the corner of the photo.