Talk about your desert solitaire: We weren’t sure what to expect when we drove 12 miles into a canyon in Utah to meet 70-year-old twins who live off the grid, grow organic vegetables, and give tours of the hidden Anasazi ruins carved into red rock. I’ve spent years pursuing pioneers and sages of organic food, but Bill and Bob Stone are among the most interesting people I have ever met. We spent two days with the brothers, sharing the rich life they’ve carved from the heart of the desert.