Hyperion of the Royal Division of Supermen has seemingly all the talents--speed, strength, flight, invulnerability--and he uses them to preserve peace and order in Victoria's empire. But then he meets Spring-Heeled Jack, a man with no superhuman talents whatsoever who nonetheless fights crime in the slums of East London. Hyperion's head wars with his heart: he knows he should arrest the vigilante, but he must admit that Jack brings relief to the suffering slums. And on top of that, there's a mysterious but undeniable attraction...