Dirk Gently's Holistic Detective Agency by Douglas Adams.
You know how usually the first thirdish of a detective novel is all the little clues, the middle thirdish is the adventure + a few more clues then like the last thirdish they have the fight scenes or whatever and solve it?
The first 95% was just gathering random clues. Like in a difficult to follow and almost absurdist way. I had to brute force my attention all the way through but did so because Douglas Adams is one of my favorites.
In the last 5% or so every single one of those random absurdist bullshit clues snapped together perfectly.
She uses a lot of language concepts very well I doubt she got them all from one language.