Sardis was by any reckoning a great and fitting prize. The capital of the west, it ranked, in the opinion of the Persians, as one of the four corners of their dominion, a city so fabulously wealthy that even its rivers ran with gold. Croesus, when not bribing the Delphic oracle or being stung by the Alcmaeonids, had used the proceeds to mint the world's first golden coinage, an innovation that had helped him become, if anything, even more obscenely rich than he had been before. Forty years on, and with Croesus long since dead, his Persian conquerors could still enjoy the fruits of his lavish spending. Even those familiar with Babylon would have found it hard to sniff at Sardis. Showcase of the city was a magnificent temple to Cybele, a mother-goddess as ancient as the hills, and capable of inspiring such extremes of devotion in her worshippers that they might end up dancing on a mountainside, writhing in orgies, or even, should the rituals be going with a particular swing, hacking off their testicles.