In his final novel, Rainbow People, Nicholas Mosley offers us the distinctly twenty-first-century story of a holy family. A man, a woman, and a child walk together along the coast of the Mediterranean Sea, near the border between Greece and Macedonia. They watch as a film is made about the refugee crisis on the beach. While the mother and father, joined by the filmmaker, contemplate the meaning of the crisis, the limited powers of art, the greater powers of fear and faith, the child explores, plays, and constantly transforms before their eyes. Months later, the family travels from...