When the leaders of the free world descend on Scotland for an international conference, all hell breaks loose as protesters of every ilk also descend with a vengeance. DI Rebus, however, is in trouble with his superiors and must insinuate himself into the situation when in the midst of the furor, an MP plunges to his death......did he commit suicide, was it an accident, or was he pushed? As is usual in the Rebus series, there are multiple murders which appear unconnected but may be related to the death leap of the MP. Again, the author weaves a very complex tale and again, Rebus finds himself on the brink of being separated from the force before the case is resolved. Big Ger Cafferty, my favorite Scottish bad guy, makes another appearance and is involved up to his double chins. This is a satisfying entry in the Rebus series.