Originally published as: Le Secret de l'Espadon. Tome 2 1953 (part 2 of a 2 part edition)
This edition originally published: France : Dargaud, 1986
Translated from the French
Captain Francis Blake, dashing head of England's MI5. Professor Philip Mortimer, world-renowned nuclear physicist. The most distinguished duo of gentleman-adventurers, battling the forces of evil and their arch nemesis Olrik around the globe, below the earth, even across time itself