I have a soft spot for thrillers that don’t explain themselves to death. Give me velocity, a little intelligence, and a reason to stay alert.
There’s a big difference between a confusing book and a demanding one. A demanding thriller assumes you can follow an argument, track motive, and notice what’s missing without having every beat highlighted in yellow.
That’s usually where the fun starts. The book stops feeling like a guided tour and starts feeling like an actual chase, one where the reader has some skin in the game instead of just watching the machinery fire.
I don’t need every thriller to be “literary.” I do need it to respect my attention. If a book can be tense without being noisy, and sharp without becoming cold, it’s already doing more than most.