Siege and Storm picks up shortly after Smoke and Bone ended. Alina and Mal have escaped Ravka and keep making their way as far as they can. But shortly the Darkling tracks them down and drags them into his plan.
I did enjoy the book. I think it works better as a book than audiobook as I did with the first one. Though that was mainly a narrator issue.
There were some good plot developments and ideas that I expect will be addressed in the last book. I'm not sure when I will read it, but I plan to at some point.