The man with dog went the other way. If you watched him from the sky he never moved in a straight line. Pulled by the dog another black dot this way and that. Tracing the night before's animal activity. If you also watched from the sky you could see that...

The forest rustled as the sun set. This was when you were screwed if you weren't already almost back. People living  modern lives never knew this. On the odd  camping trip they might feel it. Mother  nature 's signal that night is upon you. But such lessons were easily forgotten...