His Dark Design is a four-part adventure, and forms part of a series of Fan Audio Script Books written by David Blyth. It is an adaptation of the TV Comic strip adventure 'Return of the Daleks', and features the Fourth Doctor, Sarah Jane Smith, the Daleks, and Roger Delgado's Master.
The scripts are structured partially like a novel, and partially like an audio, also several comic strip excerpts are used in place of some actual dialogue.
Continuity[]
The Master recalls the last time he saw The Doctor, it was as a 'wounded animal', in reference to the events of the official TV story Frontier In Space, which concluded with The Third Doctor being gravely injured by his nemesis.
The Master makes use of his tissue compression eliminator, utilizing it against The Daleks
The TV Comic Strip story this adventure adapts infamously mistitled the Time Lord homeworld as 'Jewel' and not 'Gallifrey', in an attempt to reconcile this, the author revealed 'Jewel' was simply another Time Lord outpost
At the end of the story, The Master is detained on the planet Terserus, but not before he plants a hypnotic suggestion in Chancellor Goth, setting up potential plot threads that lead into the events of the TV serial The Deadly Assassin.