Seven men on a death-defying expedition...tell the shocking story of the world's most intriguing mystery.
Mystery rides the clouds in a murder plane
Shrouded in mystery-hid from mortal vision- the six wealthy members of the Mystery Club planned a campaign of frightfulness. (Print Ad- Sunday Mail, (( Brisbane, Queensland)) 16 January 1927)
A Savage Adventure and Glamorous Romance! (original poster)