Each to his own - I read tons of detective fiction but I've never read a Le Carre either. I guess spying just doesn't interest me that much.
Must admit I do have several books with tea shop in the title, but they're all things like Tea Shop Walks in the Peak District and so on.
I'm just finishing off Borne by Jeff Vandermeer. He's clearly a man at the top of his game at the moment and this is as good, and as strange, as anything he's done before (though without any intelligent fungoids, at least not yet). If I say that the starting point is that a woman plucks a blob of anonymous protoplasm from the fur of the giant flying bear that terrorises their decaying city and brings it up as ... something called Borne, then it will sound completely daft, but there's more to it than that and I get the feeling that nobody will turn out to be exactly what I think they are even at this late stage.