Sometime during a three-year drunk in San Francisco, Franz Westen, a pulp author, bought two strange books. One was Megapolisomancy—a “science of cities”—by the black magician and socialite Thibaut de Castries; the other an early journal of Clark Ashton Smith, a writer of horror stories. As Westen tries to piece his life together, these books draw him to the ashes of a wealthy, brilliant and degenerate bohemian cult, and to a grotesque living world of technological curses.
One morning, while examining the city through binoculars, Franz glimpses a priest-like dancing figure on a desolate hill. Fascinated and vaguely horrified, he investigates. The hill is deserted but now he sees the faceless spectre across the city, in his own apartment! Paranoia creeps over Franz; he knows...