Lately I’ve been obsessed with numbers. Not the Lottery kind, but the numbers attached to magic and superstition. After my last trip to Camphill Earthwork and recalling the three rings drawn by Marsha, the American psychic who visited the site with Harry Bell, it occurs to me that I’m developing a small fixation. But then, who doesn’t place faith in numbers? It might be phone numbers, PIN numbers, birthdays, bus numbers, even bingo – we each have our preferences…