This is book eight in the series, but I haven't read any of the previous books. I had no problem getting into the story or the lives of Liam and Aidan. This story is well written, the characters are easy to know and the mystery/suspense element pulls you along. The secondary character, Thierry as a love interest for Slava, adds a fun side romance element to the story. I did enjoy the story. But having never been to Europe, I got a little lost in the geography, which is the only part of the story I had any trouble with.