Tarot meets up with Chas and Mikki, a brother and sister, who live in a studio over an old London street market. Chas is a photographer, and Mikki a freelance journalist. Mikki is worried about a series of inexplicable accidents in the market, although Chas is inclined to laugh the whole thing off..

Tarot begins to put together the pieces that make up the mysterious happenings in the street-market. Why are Spoon and the other musicians always around, even when the market is closed? Is Mockers, the "prophet of dooom", in league with them? And what is the role of Mr Dove, watching over the market through binoculars from his tower-block office?

Tarot's exhibition of his magic powers in Madge's shop has ended in the smashing of a shelf of china - but Tarot was not the cause.Is there really a curse on the market? Meanwhile, Chas has gone off on his own to investigate the warehouse where Tarot's car was found.