He said: "The bottom line now, I'm afraid, is that as a late-stage gall bladder cancer patient, I'm expected to live for 'several months' and it's extremely unlikely I'll live beyond a year.
"So it looks like my latest novel, The Quarry, will be my last."
He said the disease had spread to both lobes of his liver, and possibly his pancreas and lymph nodes.
The author said there was little chance of surgeons being able to remove the tumours because of how far they had spread.
Neither a creeper nor a jackass be; if you manage these two things, everything else should work itself out.