I wasn't sure what to think at the beginning of this book. The character of Sixkill started off feeling very Marty Stu to me. And then I started to like the guy. I felt he was a good match with Spenser but couldn't help but think that it would have been a better story if it had been Hawk at Spenser's side.I thought the story was a bit weaker than previous, but that doesn't make it a bad thing.Spenser training with Sixkill reminded me a bit of the training scene with Paul in earlier books.A good read, worth it for sure if you're already a fan.