Chris and Simon set the bar high in this uplifting episode on the mysteries of levitation. Watch our intrepid pair as they soar through cases of saintly and fairy levitation. Simon floats, too, the unbearable lightness of mystic beings, while Chris brings suspect Spiritualist levitations by Daniel Dunglas Home and the Davenport family down to earth. Our daring duo ponder the story of Mrs Guppy's three-mile flight across London in her pjs and wing it on that impossible  question: can humans really become lighter than air?