A promising start to the series. I'm not a really big fan of paranormal investigation stories but this one was interesting enough for me to give it a go. Some questions were left unanswered and hopefully answers will surface as I continue to read the series. I'm a bit mixed on the relationship between Bo and Sam, it bothered me that Bo was cheating on his wife by having the feelings he was toward Sam. Also the part with Amy near the end was a little sad (I kind of hate when characters are killed after I got use to them) .