The Secondary Phase Douglas Adams The Hitchhiker's Guide to the Galaxy BBC Radio

What became "Fit the Seventh" actually started as a "Christmas Special" episode, and an early draft included a reference to the holiday, though the episode, as transmitted, does not. Five further episodes, to complete the second series (later retitled "The Secondary Phase") were commissioned in May 1979. These final five episodes (the last on radio until 2004) were "stripped", or broadcast on each of five days in a single week in January 1980. Trillian is entirely missing from this series. Her fate is addressed in Fit the Seventh, that she had effected an escape but had then been forcibly married to the President of the Algolian chapter of the Galactic Rotary Club. The character returns in The Tertiary Phase, where she dismisses most of the events of the Secondary Phase as having been one of Zaphod's "psychotic episodes".