I really enjoyed this book by this Icelandic author. There is certainly some gruesome stuff in the book, but I don't know if it's any more violent than some of the things I've read in P.D. James' works, for example. The mystery was good, and kept me guessing until the end, and it was a page turner.
I enjoyed how the author also made this good mystery a story about the relationships between parent and child, and about how those relationships will help determine not only the outcomes in a child's life, but may even help determine the outcomes in the lives of the individuals those children come into contact with. I found it to be a good commentary on the extreme importance of the parent-child relationship.
I certainly hope to see more mystery works by this author!