I just completed book #29 from Lee Child’s Jack Reacher series called In Too Deep. I rated it 3/5 but it’s more like 1.5/5 and got a 1.5 point bonus because Lee Child is one of my favorite writers.
So, I asked myself a question, is it just me, or the series becomes unreadable? This is the ratings I gave the individual books, and the red line represents the community ratings on Goodreads.

Up to book 18, the community gives a pretty consistent 4.1-4.2 rating, then it hovers around 4 and goes under. The latest books may go under once they gain sufficient ratings as well. But unlike the community, my last 4 ratings are 3s and 4s, and I’ve been very generous. Feels like the community keeps liking the series.
According to some Goodreads sources, Lee Child felt like he runs out of steam and offloaded the actual writing to his younger brother, Andrew. Perhaps I just don’t like Andrew Child’s storytelling. Spoilers ahead.
Book 29 is about some world-scattering conspiracy. Reacher, a retired 60-something homeless vet who owns no phone, car, or ID, would interfere, overwhelming all the three-letter agencies in the US. There are stashes of property left unattended and owned by “the Russians”. There’s a hot police officer vigilante who wants revenge. What there isn’t is anything that’s remotely believable.
Of course, the Jack Reacher series doesn’t need to make sense but it follows certain math. Bullets are faster than people. Knives cut. A person attacks Reacher, Reacher punches back before person even sees it. This math is violated. We’ll see Reacher withdrawing, not using his head, not finding the location of enemies, and winning with absurd constraints that shouldn’t have been enforced in the first place because of the math. This enters the territory of the Marvel movies where the story is first, and whatever doesn’t make sense will be filled with CGI.

Reacher Book 29 – 1.5*/5. It’s like a Steven Seagal movie. The only thing missing is a chair for Reacher to sit during the book.