Remus - I don't usually look for terribly high standards of writing style in the books I read, but I agree with you, Wolf Hall is particularly bad in this respect.
Here is what I just read (beginning of a section, so no context from before):
It is a dark morning and your eyes naturally turn towards Anne, but something shadowy is bobbing about, on the fringes of the circle of light. Anne says, 'Dr Cranmer is just back from Rome. he brings us no good news, of course.'
They know each other; Cranmer has worked from time to time for the cardinal, as indeed who has not? Now he is active in the king's case. They embrace cautiously: Cambridge scholar, person from Putney.
Huh? 
Who is Anne speaking to? Who is "they" - Anne & Cranmer or that other person Anne is speaking to? Thankfully, my new Kindle has a function that shows me who each character is when I click on his name, so I now understand that Cranmer is the scholar but who is the 'person from Putney'? There is no indication of who the other person is after this paragraph, either.
Wth is "something shadowy bobbing about, on the fringes of the cycle of light" supposed to mean anyway?