The biggest evolution of the entire Ghoul series happens in this final book. Gilly grows a spine! I never thought the day would come that he stand up and fight instead of running and screaming. The return of former characters was a great suprise.
The biggest issue I had is the repetitiveness of the case information. The main characters decribe the same issues to each other and secondary characters on multipe times. There were other instinces as well.
Overall it was a good conclusion to a fun series.