This fourth and final installment in the Psychotic Break Series sees Ethan struggling to rejoin society as drugs take center stage in his life. Home from Mexico with a shampoo bottle full of paregoric, Ethan drifts from job to job and house to house, unable to get his footing. The only thing that remains constant in his life is the relief heroin provides. The drug takes hold in tiny steps. He doesn't become a junkie overnight; he knows he is playing with fire.The novel showcases San Francisco at the end of the 1980's. It was a period of upheavals everywhere - the Berlin Wall fell; San Francisco shook, and Microsoft took over the world. It was the last days of analog, when phone booths were more common than cell phones, snail mail and typewriters were still favored over word processors. A Quarter describes a San Francisco that vanished.