A somewhat engaging story - I was actually curious about the main mystery, and anxious to see how the disparate bits would fit together in the end (as Rankin alway seems to have them do). As usual, a little more coincidence than I enjoy...

Also as usual, the characters make the story, and we've been following Rebus, Siobhan, and ... others long enough that just watching their interactions is a joy. I was really sucked in by some aspects of Siobhan's story this time, perhaps appropriate as Rebus gets closer to retirement age. I especially enjoyed learning a little about her past and family life.