Welcome readers and welcome to my guest today. He’s called DI Hunter Wilson and that sounds to me a fitting name for a detective. Hunter has come all the way from Edinburgh, the capital of Scotland, and he’s told me how much he loves his city and is devoted to solving its crimes. I’ll always remember visiting Edinburgh many years ago and being shown a group of shiny, new, stationary police cars by a tour guide who told us that showed there was no crime in Edinburgh!

Hunter has brought a letter to his daughter, Alison, who lives in Shetland. In it Hunter tells Alison about the death of his friend and his determination to get revenge for this evil act.

Dear Alison,

I hope you are well and that your job is going well. I hope you will manage to visit me in August so that we can go to…