2015 Reading Challenge [Closed] discussion

I must agree with some of the other reviewers here that this third installment seemed a little forced. We think we know our hero Fin pretty well and then we learn he was a roadie for a rock star whose plane disappeared 17 years ago. And one of the members of the group was his best friend who still lives on the Isle of Lewis. We thought we knew who his best friend was. Remember Books One and Two? Also, I don't know who characterized this as a trilogy but in my opinion a trilogy should be a story in three parts. This one clearly leaves the door open for another installment. So the truth is, my rating should probably be lower but I enjoyed being whisked away to The Hebrides Islands for another absorbing mystery among the friends and family of Fin MacLeod. And should there be another installment -- I'm in.