Raven Black / Shetland

I've recently been watching Shetland on iPlayer. It's a pretty good crime series set on Shetland. After a bit of a wait, I got Raven Black , the first of the books on which the series is based, from the library. It's not the first novel to be adapted (they did Red Bones , the third book, first), so it's possible some of the changes relate to events that will happen later in book-canon, but I was…