The Anomaly is a very cinematic read in the sense that you can immediately tell someone was writing a movie they had in their head. And what a surprise to learn that Michael Rutger is a writing pseudonym for Michael Marshall Smith, who's a screenwriter. That being said, the book was OK. The pacing was good, the ideas interesting and the human aspect of the characters was intriguing. However I couldn't get out of that "pitch meeting" feeling that this is a "What if Indiana Jones was a YouTuber" idea, just filled in enough to be book sized.
It starts with the members of an expedition trying to find an ancient site mentioned into an obscure and vague old text. These people have a YouTube channel focused on fringe science theories, urban myths and the like, only this time they caught a break when they found a foundation willing to sponsor their trip to the Grand Canyon to find this place. And of course they find it and of course there are some weird things in it and it keeps escalating to the point where "Oh, come ON!" is a very frequent thought.
So the story was OK, the characters kind of cardboard, but fine, the plot a bit ridiculous - what can you expect, only I didn't really like the ending. The story had reached a place where the entire history of the world is in doubt and from that it dropped to the level of people going home and nothing else happening. What was even the point?!
Bottom line: this is a perfect book to read in an airplane, where I actually did it myself. It reads fast, it means nothing, it requires very little from you.