A Soviet rocket falls back to Earth carrying deadly bacteria. KGB Professor Voronov turns the extraterrestrial threat into a terrifying weapon that could be used to devastate the Western world–but he doesn’t take into account the vigilance of Her Majesty’s intelligence services. Soon, Blake and Mortimer are drawn into a lethal, shadowy war, from Moscow to London, where the stakes are no less than international peace and the real enemy may not be so obvious.

In Venice, a boating accident leads to the discovery of a 400 year old text bearing the signature ‘W.S.’ and promising the truth about the ‘Shakespeare mystery’. That very night, someone tries unsuccessfully to steal the precious document. The discoverer, Marquis Stefano Da Spiri, decides to send a copy of the document to a specialist of the Bard in London for stylistic authentication. As for the original, he entrusts it to an old comrade in arms from WW2: Captain Francis Blake...

Deep under Sao Miguel island, rumoured to be the last emerging part of Atlantis, Professor Mortimer has discovered samples of a mysterious radioactive metal. Could it be the Atlanteans’ legendary orichalcum? When he and his friend Blake set out on an expedition into the depths to find out, sabotage occurs in the form of their old opponent Olrik. And soon, all three will be embroiled in a power struggle far bigger in scope than they could have imagined.

Several months after their adventures in Antarctica, Blake and Mortimer are back in England. Still somewhat shaken after his ordeal, the professor is ordered by his doctor to get some rest. In typical Mortimer fashion, he decides to spend his holidays in Africa... looking for a lost civilisation! Accompanied by Nastasia Wardynska and an old flame of his, he begins tracking down a culture that is older than any ever recorded—but someone is dogging their every step...

Several months after the end of the Third World War – won thanks to the Swordfishes, the formidable jet bombers designed by Professor Mortimer – England is dismantling its base in the Makran, from which the final counter-attack was launched, and where the surviving airplanes are still kept. But in the shadows, devious schemes are being hatched, and while Mortimer is busy preparing his Swordfishes for repatriation, Blake is in Ireland, where rumour has it the IRA has some sinister plans – and even worse allies ...

Tasked by the queen to close the ‘Septimus Wave’ case once and for all, Captain Blake is facing a daunting task, for many questions remain unanswered. Where did the spaceship buried beneath London come from? What became of Lady Rowana and Professor Evangely? Meanwhile, Mortimer is trying to pull Olrik out of the catatonic state the villain has been in since his encounter with the ship’s occupant. Has the threat to the nation truly been vanquished?

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?

Extreme weather threatens the whole of continental Europe, turning the lives of its citizens inside out. The French government calls Professor Mortimer to help solve this enigma. Mortimer travels near Paris to visit his friend Professor Labrousse, the chief French meteorologist. But when the taxi driver Labrousse sent to meet Mortimer at the station disappears, our friend becomes the prime suspect. Mortimer gets in touch with his old friend Blake, also in France, to help him out of this tricky situation. However, Blake disappears as well, so Mortimer and Labrousse have two missing-person cases to investigate. They soon discover that the two disappearances are not only linked to each other, but also to the climatic catastrophes.

It’s been several months since the events of The Yellow M, but the evil of Professor Septimus still echoes around London. Important figures of the capital’s jet set come together around the questionable values the mad scientist defended. Olrik is forced to resort to opium in order to forget he was guinea pig. As for Mortimer, he too is trying, albeit for more humanist reasons, to revive certain aspects of Septimus’s work – to Blake’s extreme concern...

Mortimer is brought to the camp of General Li Hsi, the Chinese warlord, where he is reunited with a seriously injured Nasir. The professor was kidnapped in order to recover the archaeological proof of the general’s imperial lineage, but also to repair the Red Wing, a formidable combat aircraft Olrik unwittingly delivered. While Blake moves heaven and earth to find him and protect Hong Kong, Mortimer escapes to go in search of the only thing that can save Nasir: a legendary pearl ...