|The Perpetual Bond|
|Big Finish Productions audio drama|
|Written by||Simon Guerrier|
|Directed by||Lisa Bowerman|
|Release date||February 2011|
The Perpetual Bond is a Big Finish Productions audiobook based on the long-running British science fiction television series Doctor Who.
The Companion Chronicles "talking books" are each narrated by one of the Doctor's companions and feature a second, guest-star voice along with music and sound effects.
The First Doctor returns to 1960s London and discovers duplicitous Bowler hatted businessmen dealing in immoral commodities.
Steven Taylor uses the public's familiarity with the Beatles 1967 hit All You Need Is Love to break them free of alien mind control. It was later revealed in The Cold Equations that the story was set in 1966, before the release of the song. However, the section of All You Need Is Love that is hummed was taken from the La Marseillaise (the national anthem of France), which would have been well known in England in 1966.