The thickest of frosts have been layering everything with a glistening veil before gradually melting in the morning sun. The Airstream warms quickly when there is sunlight shining in through the side windows. Without the sunlight, and when the temperature drops to zero or below outside, we rely more on the gas. I'm off to refill it today. I should have a stunning drive through the Cotswold countryside with the sparkling frost and slowly lifting mist.