Blake and Mortimer 1, the Yellow 'm'

London's walls resound with the incredible exploits of the 'Yellow Mark.' The spectacular actions of this mysterious criminal are on the increase: holding up the Bank of England, robbing the imperial crown... No one seems able to stop him. He is so audacious that he lets the police know in advance where he will commit his crimes, each time ridiculing Scotland Yard a little more. The apparent ease with which he evades police schemes begins to worry the highest authorities of the country. The Home Office asks Captain Francis Blake to solve the mystery and discover the identity of the man who hides behind the Yellow Mark. The captain immediately takes as partner his old friend, Professor Philip Mortimer, whose scientific knowledge will be invaluable in solving this extremely complex enigma. Who hides behind the Yellow Mark?

Born of Edgar Pierre Jacobs' imagination during the post-WWII period, Professor Philip Mortimer, nuclear physicist, and Captain Francis Blake, dashing head of MI5, are legendary heroes of the 9th art. The author, a close relative of Herge, appreciated the excessive and the astonishing that could be found within the scope of scientific invention; his heroes, very much ahead of their time, discover extraordinary objects and phenomena through their uncommon adventures. Before devoting himself exclusively to them, Edgar Pierre Jacobs collaborated with Herge and took part in the realization of 'Tintin in the Congo', 'Tintin in America', 'The Blue Lotus', 'King Ottokar's Sceptre', 'The Seven Crystal Balls', and the 'Prisoners of the Sun'.