This book blends both Jewish and Arabic folk traditions, when a golem and jinni both arrive--both masterless but one nonetheless bound--in turn of the century New York, and must face a shared threat. Interesting both for the magical elements and the historical milieu. I was frustrated at first by the time-hopping--the histories of the golem and jinni are both fully fleshed out--but it all came together in the end. Absorbing and satisfying; highly recommended.