Extreme weather threatens Europe. When France calls on Mortimer to help solve this enigma, he goes to visit Professor Labrousse, chief French meteorologist. After the driver Labrousse sends to pick up Mortimer disappears, our friend is the prime suspect. Mortimer contacts Captain Blake to help him with this tricky situation. Then Blake disappears. Mortimer and Labrousse have two missing-person cases to investigate. They soon discover that the disappearances are linked to the climatic catastrophes.
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 exceptional 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, 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 Prisoners of the Sun.