Chris pulled binoculars from his rucksack and focussed on his subject. He gasped. The man, dark-haired and wearing jeans and a white T-shirt, was a carbon copy of himself. He stared as his mirror image frantically waved a yellow flag.
Feeling unsteady, Chris lowered the binoculars. When he looked again with the naked eye, the figure had vanished. Aware that dusk was falling and he still had some way to go, he continued into the forest.