THE brilliant lights enliven Petersham House, an historic building on Londons outskirts. As the sun sets, noble gueststhe aristocracy and Hollywood starsstart arriving at the Elephant Family headquarters. The party beat becomes increasingly noticeable as waiters continuously offer the special menu, organically grown vegetarian dishes concocted a la India and British Raj.

The guest of honor is Prince Charles and his wife, the Duchess of Cornwall. T