T he original, authentic, real Ur-text of the Arabian Nights (aka Alf Layla wa-Layla, or the Tales of a Thousand and One Nights, or just the Nights) is a mythical beast. There are far more than a thousand and one nights, for the thirty-four-and-a-half stories in the fourteenth or fifteenth century "core" body of the Nights were soon supplemented by other tales in Arabic and Persian, from the culture of medieval Baghdad and Cairo, and then in Hindi and Urdu and Turkish, tales carried by pilgrims and crusaders, merchants and raiders, back and forth by land and sea. And then came the narratives added by European translators, as well as the adaptations (in paintings and films) and retellings by modern novelists and poets. There is no agreed-upon table of contents. As Marina Warner points out, at the start of this enchanting book, "the stories themselves are shape-shifters", and the Arabian Nights, like "one of the genies who stream out of a jar in a pillar of smoke", took on new forms under new masters. The corpus lacks not only parents but a birthplace; Persia, Iraq, India, Syria and Egypt all claim to have spawned it. So the Thousand and One Arabian Nights are not only not a thousand and one but not (just) Arabian. But then you sense, behind the Arabic, Homer and the Mahabharata, and the Bible, and you see that there is no there there The chronological and cultural strata of the Nights are like the layers of