Writer Aubrey Menen, an unsentimental cicerone (""I do not intend to spend much time veiling anything with imaginations of my mind, dark or light. I shall take you on no expeditions by moonlight""), tours the ancient Roman desert cities on the other side of the Mediterranean -- Timgad, Sabratha, Leptis Magna, Petra -- surveyed against the backdrop of growing Roman-Phoenician antagonism.