Book excerpt: In this fascinating real-life adventure, a chance meeting with a young Navajo Indian propels an English traveler out of his middle-class London life and into the world of North American Indian Medicine Men. Here, people firmly believe that witchcraft can bring ruin, even death, and only Medicine Men have the knowledge to do battle with evil, lift curses and restore the sick to health. Blue Horse is one of a dwindling band of Medicine Men traveling the vast Navajo nation of New Mexico and Arizona. Charles Langley, a former London newspaper executive, becomes his "bag carrier" and chauffeur and eventually his trainee. He sees the Medicine Man perform feats: foretelling the future, uncovering the hidden past and communicating with spirits. Vowing not to leave his brains at the teepee door, Langley studies the accumulating evidence that Medicine Men really can cure the sick, change events of long ago and influence the future. Across the breathtaking Southwest landscape and along the fabled Route 66, he meets startling characters and gains rare access into ancient healing traditions.