A Sixth Doctor novel with Peri Brown California 1981: Peri wants to visit her home, but the TARDIS, with its usual precision, has dropped her and the Doctor off on the right continent, but in the wrong place, in the right decade, but the wrong year. Determined anyway to enjoy the weird fashions of her native time, Peri wants to go clubbing. The Doctor takes her to a seedy looking joint, where aliens and supernaturals congregate. And leaves her there. Stranded and alone, with only cryptic instructions from the missing Doctor to go by, Peri finds herself drawn into the underground world of early phone and computer hacking. In 1981, the computer network may be relatively primitive, but the hackers are getting more sophisticated by the minute. And they are about to become a whole lot more so, as one of the hackers has got her hands on the technology of the Eridani, an alien race whose freighters were hijacked by their enemies the Jai. The Doctor struggles to prevent the technology being used on Earth, the more so as he gradually realises the exact nature of the mysterious components from outer space...