Before she became the nineteenth century's heroine, before he had written a word of Madame Bovary, Florence Nightingale and Gustave Flaubert traveled up the Nile at the same time. In reality, they never met. But in The Twelve Rooms of the Nile, they ignite a friendship marked by intelligence, humor, and a ravishing tenderness that will alter both their destinies. On the surface, Nightingale and…