Holy cow, three book review blogs in a row?
The Last Detective combines aliens and hard boiled detectives for a fascinating new spin on both genres.
The book mashes together classic detective style attitude from the sixties with an occupation by aliens. Both topics on their own can be interesting, but together I found it outright riveting. The aliens focus purely on betterment of their races, everything for the greater good, individuals mean nothing. This made an interesting dynamic but also left a lot of questions regarding the larger picture unanswered.