Les aventures de Blake et Mortimer

"Blake and Mortimer is a Belgian comics series created by the Belgian writer and comics artist Edgar P. Jacobs. It was one of the first series to appear in the Franco-Belgian comics magazine Tintin in 1946, and was subsequently published in book form... The main protagonists of the adventures are Philip Mortimer, a leading British scientist, and his friend Captain Francis Blake of MI5. The main antagonist is their sworn enemy, Colonel Olrik, who has appeared in almost every book. Their confrontations take them into the realms of detective investigation and science-fiction, dealing with such themes as time travel, Atlantis and espionage. Since the death of Jacobs, new books have been published by two separate teams of artists and writers... When Tintin magazine was launched on 26 September 1946, it included the story, Le secret de l'Espadon (The Secret of the Swordfish) which introduced the characters of Captain Francis Blake of the British Intelligence Service, his friend Professor Philip Mortimer, a leading physicist, and their sworn enemy Colonel Olrik. The epic of the Swordfish ended in 1949 but Olrik, Blake and Mortimer continued their conflict through a whole series of science-fiction/detective stories that saw them go all the way from the lost continent of Atlantis to the Catacombs of Paris." -- adapted from Wikipedia