Doctor Who: The Romans — Donald Cotton

The year is 64 AD, and the TARDIS travelers are enjoying a restful time in a villa close to Rome. Their peace and quiet is shattered when a visit to the city sees the Doctor mistaken for a lyre player, and him and Vicki subsequently pursued by an assassin. Meanwhile, Ian and Barbara are kidnapped and sold as slaves: Ian on a galley in the Mediterranean Sea, and Barbara to serve in the court of Nero himself. Using all his ingenuity to gain the freedom of Nero's court, the Doctor inadvertently inspires the Emperor's plans to completely rebuild Rome. Can the Doctor, Vicki, Ian and Barbara escape with their lives before the city becomes a cinder?