What a sequel.
I listened to the audibook as soon as it was released and being dropped back in to the world of Shades of Gray was a pleasure from beginning to end. The world the characters inhabit is massively expanded from the first novel and brings with it countless more mysteries and questions that I'm excited to see answered in the third book.
At the centre of it all is Eddy and Jane, as believable and wonderful a couple as you could hope to encounter in fiction.
If you're read Shades of Gray then this is an absolute must. If you haven't, then go read it and come back for this one.