Camera Clue is a magazine story.
Peter Sam is taking a Camera Club around the little railway to take photos of the scenery. On the way, they meet a shepherd who has lost one of his sheep. As they continue on, they pass the waterfall and take photos of it. At the Top Station, a girl shows Peter Sam her photo of the waterfall, and Peter Sam immediately goes to collect the shepherd. They find out that the sheep is stuck on a ledge, and was only found because it was in the background of the photo.