It's always fun to have another Gideon Oliver novel to read, and this one is no exception. While it's not a great book, it's a good book: a fun read, with the snappy dialogue one expects from Elkins. I personally like the Gideon Oliver series better than Elkins' other series.
Since much of the plot has been discussed in other reviews, I'll just point out a few things I particularly liked about this volume:
*the details of the family ranching business in Hawaii - including the reference to using Japanese quarter horses. (I'll let you discover that breed :D)
*the resemblance of the family of Swedish sailors-turned-ranchers to the "Norwegian bachelor farmers" that Garrison Keillor talks about on his radio show
*the running jokes about the terrible coffee one gets in police stations
One of the things that people look for, in mystery series, is whether there is continuity in the background lives of the characters. This is one of the series where there is such continuity; however, it's not real-time. Our protagonist and his family and friends have aged about a decade, in the nearly 25 years that the series has been running. This is a reasonable pace, that allows us to follow their lives. Even though this is a series, though, this particular book could be read and enjoyed without having read other books in the series - there are no points here where a reader would be bewildered because they didn't have some background knowledge. It's more fun, though, if you do read the whole series, so you can get more enjoyment out of the exchanges between Oliver and Lau, and you know more about Oliver's wife, and so on. So go ahead and get this one and read it, but get a couple of the older books, too - I promise you'll enjoy them. Probably "Old Bones" and "Twenty Blue Devils" would be the two that would provide you with the most background for the buck, especially since "Twenty" takes place in Tahiti, thus giving the reader some additional background for the South Pacific setting of "Where There's a Will."
Family reading alert: this is a great series for kids who are reading at adult levels but don't need to be exposed to too much in the way of adult themes - there's no explicit sex, very little that anyone would consider bad language, and no excessive gore or violence. I was reading books from the grown-up area of the library by the time I was 12 (which was considerably before this series started) so I know it can be difficult for the parents of gifted kids to find stuff that is safe yet not childishly boring. Elkins' books fit the bill.