The two stories contained in this third volume are firmly within the realm of science-fiction. And yet, Atlantis Mystery, with its prehistoric monsters, futuristic machines and subterranean lost civilisations, stands in stark contrast with S.O.S. Meteors, the action of which takes place entirely within Paris and the surrounding countryside. A falsely mundane environment that demonstrates Jacobs's ability to summon adventure anywhere! The 32 pages of extra material highlight, among other things, the author's creative process and sources of inspirations.