Blackwood Music to Agatha Christie in 9 Steps
- Blackwood Music published Think About Your Troubles
- Think About Your Troubles was published by Six Continents Music
- Six Continents Music published The Family
- The Family was published by Unichappell Music
- Unichappell Music published Cowboy
- Cowboy was produced by Harry Nilsson
- Harry Nilsson wrote Ten Little Indians
- Ten Little Indians is partly inspired by And Then There Were None
- And Then There Were None is a novel by Agatha Christie