After plowing through this book, I've decided it's my new favorite Tempe Brennan adventure. (Death Du Jour was my prevoius favorite.) The detail on the crash investigation was very interesting and added to the overall effect of the story. Kathy Reichs explains the science used by her characters, rather than just making a general statement like "she looked into it." The reader gains an understanding of what really goes on in police/forensic investigations.After his virtual absence in Deadly Decisions, Ryan is back in full wisecracking force. While I spent most of the book wishing Tempe would just stop her dancing around and make some sort of decision about him, she seems to lean toward that in the end, but I've taken that bait before. So, when does the next book come out?