I’m off and away for a week to the island of Canna where the summer has been hot and dry, so dry they had to cancel some holiday bookings because there wasn’t enough water to cope with extra visitors. I have a horrible feeling that lack of water won’t be the problem by the time we get there. Still, we’ve got books and booze and good company and a roof over our heads. What more could we possibly want? Well, ok, some sun would be very nice.