In the Shadows is the new Torchwood audio book just released by the BBC, and it is the best one yet. It was creepy, funny, in-character and exciting. Actually, it's a good example of what some of the regular TV episodes should have been like. Good writing, good plot. Eve Myles does a fabulous job of reading. She does seem unable to totally shift the Welsh accent when she's doing Jack, Tosh and Owen, but it isn't weird or distracting and her voice is clear and pleasant to listen to. My only complaint would be that it could have been a little longer (it runs at 2 hours 30 minutes) as the end felt a bit rushed.
One of my main concerns with the Torchwood novels and audio books is the amount of Ianto we get for our money and, in this case, I'm completely satisfied with the quantity and quality of Ianto-y and Janto-y goodness.