Created by Edgar Pierre Jacobs after WWII, Professor Philip Mortimer, nuclear physicist, and Captain Francis Blake, dashing head of MI5, are legendary heroes of the 9th art. The author, a close friend of Hergé, took part in the visual realisation of Tintin in the Congo, Tintin in America, The Blue Lotus, King Ottokar's Sceptre, The Seven Crystal Balls, and Prisoners of the Sun.