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...