Blue Box 
BBC Past Doctor book (6th Doctor)

By: Kate Orman
When:   March 2003 (UK)
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. Stranded and alone, 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.
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