- Author Existence Failure:
- Averted, since the series continued after the original author's death.
- Another aversion with the first part of The Curse of the Thirty Denarii due to the artist's death. The drawings have been finished by his widow.
- Author Phobia: When author Edgar P. Jacobs was two or three years old he fell down a seven meter deep old well. It took half an hour before he was able to be brought back up. This leads to a lot of stories where Blake & Mortimer are lost inside underground locations.
- No Export for You: There were English translations of all published Jacobs stories, but nowadays they're quite expensive. Cinebook has put out a number of both Jacobs and post-Jacobs stories, although for some reason they've put the Jacobs stories out of order, and have yet to publish The Secret of The Swordfish, even though some stories reference it quite heavily. Then again, at three volumes, can you blame them?
- Saved from Development Hell: The second part of Professor Satō's Three Formulae was published in 1990, the first having come out in 1977. Part of the delay was because of Jacobs' death in 1987.
- Trope Namers: "The Yellow 'M'" Shout-Out.
- Uncredited Role: None of the English voice actors from the animated show were credited.
Trivia / Blake and Mortimer