Heads of Cerberus, The

Capped by a silver figure of Cerberus, the three-headed hound that guards the gates of Hell, an ancient glass vial contains ordinary-looking dust. Once inhaled, however, the dust exhibits extraordinary powers, transporting a trio of adventurers from the early twentieth century to the year 2118. The time-travelers emerge into Philadelphia's brutal totalitarian state, where the city hall is a temple, a statue of William Penn is worshipped as an idol, and the citizens are crushed under the religious tyranny of the Penn Service and its Superlatives.