Lanefan
Victoria Rules
Lies of Locke Lamora is an interesting example (and a great read!).I suspect that's because I came up on different Fantasy novels.
My preferred fantasy is about guile heroes fast-talking and manipulating through a cool world whose rules they also manipulate to their advantage. Magic and supernatural and fantastic elements aren't so much a cool set piece as interesting parts of the world the hero makes use of and even if new locations might be cool and awe-inspiring to me as the reader, it's a place the hero knows and inhabits and swims through like a fish in the ocean. Think Lies of Locke Lamorra (though Lynch has a worse output scheule than me at this point) or Sanderson's non-doorstoppers like Elantris or Warbreaker, or my most beloved Legend of Nightfall
Part of the book deals with Locke's background and childhood, and how he becomes a thief in the first place. The rest of the book tells a tale of what he does much later, when he's become a master at his craft.
There's a huge gulf in between those two times in his life during which he develops all those skills and contacts and - in game terms - gains a bunch of thief levels along the way. IMO that's what the game should cover: that long and winding journey from having just become a thief* to being a true master. What's in the Gentlemen Bastards books (which are LoLL plus two sequels) would equate to a late-stage series of adventures in a long campaign.
* - feel free to substitute any other class here, of course; but Locke's a thief, hence the example.