"I wrote an 'island crime novel' -rather to the dismay of my then editor, the infinitely experienced and worldly Lord Harding of Penshurst who moaned gently and said that everybody had to write their island's novel, he supposed. It's called No Man's Island and came out in 1983. The island's called by an imaginary name but is based on the Isles of Scilly."
Sounds most intriguing. As you can see from this Euro Crime listing, No Man's Island is second in a series of six books featuring archaeologist Tamara Hoyland, which is an interesting coincidence, as my daughter has only this week decided that she might want to study archaeology at university (having been set on history for the past few years). In fact, she even went to the local library after school today to find out more about the subject, only to find nothing at all useful in stock. Never being short of a book, however, I have loaned her a no doubt very out-of-date volume I once won as part of a school prize, and hence still have, Archaeology by Liam de Paor, so that's OK. .
I also remember that Clare Dudman, fairly soon after I'd "met" her, wrote about a book called The Island by Jane Rogers. Clare enjoyed the book very much, as beautifully demonstrated by this 2006 post containing a review of the book and her interview with the author. It is a lovely piece, well worth reading in its own right even the the book doesn't grab you. (It must have influenced me as I bought the book straight away, but am ashamed to say have not yet read it.)