Past Doctor Adventures

The Past Doctor Adventures (sometimes known by the abbreviation PDA or PDAs) were a series of spin-off novels based on the long running BBC science fiction television series Doctor Who and published under the BBC Books imprint. For most of their existence, they were published side-by-side with the Eighth Doctor Adventures. The novels regularly featured the First through Seventh Doctors. The Infinity Doctors had an ambiguous place in continuity and featured an unidentified incarnation of the Doctor. The Eighth Doctor co-starred with the Fourth Doctor in one novel (Wolfsbane) and, after the Eighth Doctor Adventures had ceased publication, a novel (Fear Itself) featuring the Eighth Doctor and set between two earlier Eighth Doctor Adventures (EarthWorld and Vanishing Point) was published within the Past Doctor series.

Between 1991 and 1997, Virgin Publishing produced successful spin-off novels under the New Adventures and Missing Adventures ranges. However, following the Doctor Who television movie in 1996, the BBC did not renew Virgin Publishing's license to continue publishing Doctor Who material. Instead, they opted to publish their own range beginning in 1997 with The Devil Goblins from Neptune by Martin Day and Keith Topping. The range continued to be published through to 2005.

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