A walker captured the moment he spotted a "ghostly figure" hiking alongside him in the mountains. Chris Randall, 45, was walking in the Lake District, Cumbria, when he spotted a Brocken spectre - a large shadow of an observer cast onto cloud or mist - out of the corner of his eye. A Brocken spectre is a rare phenomenon which takes place on a misty day when the sun is behind a climber - their shadow is projected forwards through the mist. The rainbow effect is created by the sun hitting water particles in the air.
