
Part of Series
In theory the TARDIS should be able to change its appearance to blend in unobtrusively wherever it happens to materialise. In practice, however, because of a fault in the chameleon circuit, it always looks like a police box—a minor inconvenience the Doctor now hopes to correct. Fixing the mechanism involves a visit to Earth and a trip to the planet Logopolis—normally a quiet little place that keeps itself to itself. But on this occasion the meddling presence of the Doctor's archenemy, the Master, ensures the disruption of normality. And even the Master is horrified by the threat of total chaos he unintentionally precipitates—until he finds a way to turn the imminent destruction of the universe to his own advantage...
Author

Christopher Hamilton Bidmead is a British writer and journalist who wrote several Doctor Who TV serials, all of which he also novelised. He was also script editor for Season 18. He was attached (agreed, but without a contract) to write several serials that were ultimatelly cancelled. They were In the Hollows of Time, a two-part (forty-five minute) story for the cancelled season 23[1], and a four parter, Pinacotheca (a.k.a. The Last Adventure), which would have been the third part of the The Trial of a Time Lord arc[2].